/* CSS Variables for Brand Colors */
:root {
    --dsi-navy: #003B5C;
    --dsi-navy-dark: #00223E;
    --dsi-teal: #0085CA;
    --dsi-aqua: #48B6E7;
    --dsi-light: #F4F7F9;
    --dsi-gray: #4A5568;
    --dsi-text: #2D3748;
    --transition-speed: 0.3s;
}

html {
    overflow-x: hidden;
    max-width: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dsi-text);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    max-width: 100%;
}

/* Accessibility: Focus and Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--dsi-teal);
    color: white;
    padding: 8px 16px;
    z-index: 9999;
    transition: top var(--transition-speed);
    text-decoration: none;
    font-weight: 600;
}
.skip-link:focus {
    top: 0;
    outline: 3px solid var(--dsi-navy);
}
*:focus-visible {
    outline: 3px solid var(--dsi-aqua) !important;
    outline-offset: 2px !important;
    box-shadow: none !important;
}

/* Navigation */
.navbar {
    transition: all var(--transition-speed) ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.navbar-premium {
    background: rgba(255, 255, 255, 0.92) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}
.navbar-premium.scrolled {
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.1);
}
.navbar-brand-row {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.5rem 0.65rem;
    max-width: min(100%, 600px);
}
@media (min-width: 1400px) {
    .navbar-brand-row { max-width: min(100%, 650px); }
}

/* HD ekranlarda (1280-1599) menüyü tek satıra sığdır */
@media (min-width: 1200px) and (max-width: 1599.98px) {
    .navbar-premium > .container-fluid {
        padding-left: 0.35rem !important;
        padding-right: 0.35rem !important;
        gap: 0.2rem;
    }
    .navbar-brand-row {
        max-width: min(100%, 340px);
        gap: 0.18rem 0.22rem;
        flex-wrap: wrap;
        align-items: center;
    }
    .navbar-logo-item img {
        height: 34px;
        max-width: 82px;
    }
    .navbar-logo-caption.navbar-logo-caption--visible {
        display: none !important;
    }
    .navbar-semp-logo {
        height: 34px;
        width: 34px;
    }
    .navbar-symposium-title {
        display: none !important;
    }
    .navbar-brand-divider {
        display: none !important;
    }
    .navbar-symposium-block {
        flex: 0 0 auto !important;
        width: auto !important;
        min-width: 0 !important;
        max-width: none !important;
        padding-left: 0;
        overflow: visible;
    }
    .navbar-logo-under-title--mobile {
        display: none !important;
    }
    .navbar-logo-under-title--hd {
        display: block !important;
        position: absolute;
        left: 0.4rem;
        top: calc(100% - 0.3rem);
        z-index: 1060;
        font-weight: 800;
        font-size: 0.7rem;
        line-height: 1.15;
        color: var(--dsi-navy);
        letter-spacing: -0.01em;
        white-space: nowrap;
        text-align: left;
    }
    .navbar-premium .navbar-nav .nav-link {
        font-size: 0.72rem;
        padding: 0.16rem 0.18rem !important;
        gap: 0.16rem;
        letter-spacing: -0.01em;
    }
    .navbar-premium .navbar-nav .nav-link .nav-link-dot {
        width: 4px;
        height: 4px;
        opacity: 0.24;
    }
    .navbar-nav-outer {
        margin-right: 0;
        max-width: 100%;
        overflow-x: auto;
    }
    .navbar-nav-outer .navbar-nav {
        justify-content: flex-start;
    }
    .nav-cta-wrap .btn-nav-cta {
        padding: 0.28rem 0.52rem 0.28rem 0.5rem;
        font-size: 0.68rem;
    }
    .btn-nav-cta .nav-cta-info-icon {
        width: 0.8rem;
        height: 0.8rem;
    }
    .nav-cta-wrap .nav-cta-tooltip.nav-cta-badge {
        display: none;
    }
}

/* 1200-1365 arası ekstra sıkılaştırma */
@media (min-width: 1200px) and (max-width: 1365.98px) {
    .navbar-brand-row {
        max-width: min(100%, 320px);
    }
    .navbar-premium .navbar-nav .nav-link {
        font-size: 0.65rem;
        padding: 0.12rem 0.12rem !important;
    }
    .navbar-logo-under-title--hd { font-size: 0.7rem; }
}
.navbar-brand-logos {
    display: flex;
    align-items: center;
    gap: 0.4rem 0.5rem;
    flex-shrink: 0;
}
.navbar-logo-under-title {
    display: none;
}
.navbar-logo-under-title--hd {
    pointer-events: none;
}
.navbar-brand-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent, #cbd5e1, transparent);
    align-self: center;
    flex-shrink: 0;
}
.navbar-brand {
    font-weight: 800;
    color: var(--dsi-navy) !important;
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.navbar-brand span {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--dsi-gray);
    display: block;
}
.navbar-brand-main {
    text-decoration: none;
    color: inherit;
    flex: 0 1 auto;
    min-width: 0;
}
.navbar-brand-main:hover { color: inherit; }
.navbar-logo-stack {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.4rem 0.5rem;
}
.navbar-logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: none;
}
.navbar-logo-item img {
    height: 52px;
    width: auto;
    max-width: 142px;
    object-fit: contain;
}
.navbar-logo-caption {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.navbar-logo-caption.navbar-logo-caption--visible {
    position: static;
    width: auto;
    height: auto;
    margin: 0.2rem 0 0;
    padding: 0 0.15rem;
    overflow: visible;
    clip: auto;
    white-space: normal;
    font-size: 0.58rem;
    font-weight: 600;
    line-height: 1.15;
    color: #475569;
    max-width: 5.5rem;
}
@media (min-width: 1200px) {
    .navbar-logo-caption.navbar-logo-caption--visible {
        font-size: 0.62rem;
        max-width: 6.25rem;
    }
}
.navbar-semp-logo {
    height: 56px;
    width: 56px;
    object-fit: contain;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(0, 59, 92, 0.15));
}
.navbar-symposium-block {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
    flex: 1 1 auto;
    padding-left: 0.15rem;
}
.navbar-symposium-title {
    font-weight: 800;
    font-size: 0.72rem;
    line-height: 1.2;
    color: var(--dsi-navy);
    letter-spacing: -0.02em;
    flex: 1;
    min-width: 0;
    text-align: left;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
@media (min-width: 1400px) {
    .navbar-brand-divider { height: 56px; }
    .navbar-logo-item img {
        height: 58px;
        max-width: 155px;
    }
    .navbar-semp-logo { height: 62px; width: 62px; }
    .navbar-symposium-title { font-size: 0.76rem; }
    .navbar-premium .navbar-nav .nav-link {
        font-size: 0.92rem;
        padding: 0.4rem 0.58rem !important;
    }
}
@media (min-width: 1900px) {
    .navbar-premium > .container-fluid {
        padding-left: 0.7rem !important;
        padding-right: 0.7rem !important;
    }
    .navbar-brand-row {
        max-width: min(100%, 620px);
    }
    .navbar-logo-item img {
        height: 52px;
        max-width: 136px;
    }
    .navbar-semp-logo {
        height: 54px;
        width: 54px;
    }
    .navbar-symposium-title {
        font-size: 0.74rem;
    }
    .navbar-premium .navbar-nav .nav-link {
        font-size: 0.86rem;
        padding: 0.3rem 0.42rem !important;
        gap: 0.24rem;
    }
    .nav-cta-wrap .btn-nav-cta {
        font-size: 0.78rem;
        padding: 0.34rem 0.62rem 0.34rem 0.56rem;
    }
    .btn-nav-login {
        font-size: 0.8rem;
        padding: 0.34rem 0.7rem;
    }
}
@media (min-width: 2500px) {
    .navbar-premium > .container-fluid {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }
    .navbar-brand-row {
        max-width: min(100%, 740px);
        gap: 0.4rem 0.5rem;
    }
    .navbar-logo-item img {
        height: 60px;
        max-width: 158px;
    }
    .navbar-semp-logo {
        height: 62px;
        width: 62px;
    }
    .navbar-symposium-title {
        font-size: 0.84rem;
    }
    .navbar-premium .navbar-nav .nav-link {
        font-size: 0.94rem;
        padding: 0.38rem 0.58rem !important;
        gap: 0.3rem;
    }
    .nav-cta-wrap .btn-nav-cta {
        font-size: 0.86rem;
        padding: 0.42rem 0.74rem 0.42rem 0.66rem;
    }
    .btn-nav-login {
        font-size: 0.88rem;
        padding: 0.42rem 0.8rem;
    }
}
.navbar-premium .navbar-nav .nav-link {
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.38rem 0.55rem !important;
    border-radius: 999px;
    margin: 0;
    color: #1e293b !important;
    opacity: 1 !important;
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.navbar-premium .navbar-nav .nav-link .nav-link-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: currentColor;
    opacity: 0.38;
    flex: 0 0 auto;
}
.navbar-premium .navbar-nav .nav-link::after { display: none; }
.navbar-premium .navbar-nav .nav-link:hover,
.navbar-premium .navbar-nav .nav-link:focus {
    background: rgba(0, 133, 202, 0.1);
    color: var(--dsi-navy) !important;
}
.navbar-premium .navbar-nav .nav-link.active {
    background: rgba(0, 59, 92, 0.08);
    color: var(--dsi-navy) !important;
}
.navbar-premium .navbar-nav .nav-link.active .nav-link-dot {
    opacity: 0.9;
}
.navbar-premium.navbar-expand-xl .navbar-collapse {
    flex-grow: 1;
    flex-basis: 0;
    min-width: 0;
    align-items: center !important;
    overflow: visible;
}
.navbar-nav-outer {
    flex: 1 1 auto;
    min-width: 0;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.navbar-nav-outer .navbar-nav {
    flex-wrap: nowrap !important;
    justify-content: flex-end;
}
.navbar-premium.navbar-expand-xl {
    flex-wrap: wrap;
}
@media (min-width: 1200px) {
    .navbar-premium.navbar-expand-xl {
        flex-wrap: nowrap;
    }
}
.navbar-premium.navbar-expand-xl > .container-fluid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    position: relative;
}
@media (min-width: 1200px) {
    .navbar-premium.navbar-expand-xl > .container-fluid {
        flex-wrap: nowrap;
    }
}
.nav-cta-wrap {
    display: flex;
    flex: 0 0 auto;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.35rem;
}
.nav-cta-wrap.nav-cta-inline {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0;
}
.nav-register-group {
    position: relative;
    display: inline-flex;
    align-items: center;
}
.nav-cta-tooltip {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: auto;
    z-index: 1080;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
    filter: drop-shadow(0 6px 16px rgba(15, 23, 42, 0.2));
    white-space: nowrap;
}
.nav-register-group:hover .nav-cta-tooltip,
.nav-register-group:focus-within .nav-cta-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.nav-cta-wrap .btn-nav-cta {
    width: auto !important;
    padding: 0.45rem 0.95rem 0.45rem 0.85rem;
    font-size: 0.82rem;
    gap: 0.35rem;
}
.nav-cta-wrap .nav-cta-tooltip.nav-cta-badge {
    font-size: 0.62rem;
    padding: 0.32rem 0.65rem;
    white-space: nowrap;
}
.btn-nav-cta .nav-cta-info-icon {
    flex-shrink: 0;
    width: 1.05rem;
    height: 1.05rem;
    opacity: 0.95;
}
.btn-nav-cta {
    background: linear-gradient(135deg, #0085CA 0%, #006aa3 100%);
    color: #fff !important;
    font-weight: 700;
    font-size: 0.875rem;
    padding: 0.55rem 1.25rem;
    border-radius: 999px;
    border: none;
    box-shadow: 0 4px 14px rgba(0, 133, 202, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-nav-cta:hover {
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 133, 202, 0.45);
}
.btn-nav-cta:hover .nav-cta-info-icon,
.btn-nav-cta:focus .nav-cta-info-icon {
    opacity: 1;
}
@media (max-width: 1199.98px) {
    .navbar-premium.navbar-expand-xl > .container-fluid {
        flex-wrap: nowrap;
        align-items: center;
        min-width: 0;
        max-width: 100%;
        position: relative;
    }
    .navbar-brand-main {
        width: auto;
        flex: 0 1 auto;
        min-width: 0;
        max-width: calc(100% - 56px);
        margin-right: 0.35rem;
        justify-content: flex-start;
        text-align: left;
    }
    .navbar-toggler {
        position: relative;
        z-index: 1062;
        margin-left: 0.2rem;
    }
    #mainNav .navbar-collapse {
        position: absolute;
        left: 0.35rem;
        right: 0.35rem;
        top: calc(100% + 0.2rem);
        background: #ffffff;
        border: 1px solid rgba(15, 23, 42, 0.08);
        border-radius: 0.8rem;
        box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
        padding: 0.35rem 0.75rem 0.8rem;
        z-index: 1061;
    }
    .navbar-brand-row {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        column-gap: 0.25rem;
        row-gap: 0.15rem;
        max-width: 100%;
        width: 100%;
        min-width: 0;
    }
    .navbar-brand-logos {
        flex-shrink: 1;
        min-width: 0;
        flex-wrap: nowrap;
        row-gap: 0;
    }
    .navbar-logo-stack {
        min-width: 0;
        flex-shrink: 1;
    }
    .navbar-logo-item {
        flex-shrink: 1;
        min-width: 0;
    }
    .navbar-logo-caption.navbar-logo-caption--visible {
        display: none !important;
    }
    .navbar-logo-under-title--hd {
        display: none !important;
    }
    .navbar-logo-under-title--mobile {
        display: block;
        flex: 0 0 100%;
        width: 100%;
        text-align: left;
        font-size: 0.6rem;
        font-weight: 800;
        line-height: 1.15;
        color: var(--dsi-navy);
        letter-spacing: -0.01em;
        white-space: normal;
        margin: 0;
        padding-left: 0.2rem;
    }
    .navbar-brand-divider { display: none !important; }
    .navbar-symposium-block {
        flex: 0 0 auto;
        width: auto;
        min-width: 0;
        max-width: none;
        justify-content: center;
        padding-left: 0;
    }
    .navbar-symposium-title {
        display: none !important;
    }
    .navbar-logo-stack {
        justify-content: flex-start;
        flex-wrap: nowrap;
    }
    .navbar-logo-item img {
        height: 64px;
        width: auto;
        max-width: min(164px, max(54px, calc((100vw - 176px) / 2)));
        object-fit: contain;
    }
    .navbar-semp-logo {
        height: 68px;
        width: 68px;
    }
    .navbar-premium .navbar-nav {
        padding-top: 0.75rem;
        border-top: 1px solid #f1f5f9;
        margin-top: 0.75rem;
    }
    .nav-cta-wrap { align-items: stretch; flex-direction: column; }
    .nav-cta-wrap.nav-cta-inline { flex-direction: column; align-items: stretch; }
    .nav-register-group {
        display: block;
        width: 100%;
    }
    .nav-cta-wrap .btn-nav-cta,
    .nav-cta-wrap .btn-nav-login {
        width: 100% !important;
        justify-content: center;
        margin-left: 0 !important;
    }
    .nav-cta-wrap .btn-nav-cta {
        border-radius: 0.45rem;
        padding: 0.52rem 0.8rem;
        font-size: 1rem;
    }
    .nav-cta-wrap .btn-nav-login {
        margin-top: 0.45rem;
        font-size: 1rem;
        padding: 0.52rem 0.8rem;
        border-radius: 0.45rem;
    }
    .navbar-nav-outer {
        mask-image: none;
        overflow: visible;
        flex: none;
        width: 100%;
    }
    .navbar-nav-outer .navbar-nav {
        flex-wrap: wrap !important;
        justify-content: flex-start;
    }
}
@media (max-width: 399.98px) {
    .navbar-brand-row { gap: 0.3rem 0.4rem; }
    .navbar-logo-item img {
        height: 50px;
        max-width: 118px;
    }
    .navbar-semp-logo {
        height: 54px;
        width: 54px;
    }
}
.nav-cta-badge {
    font-size: 0.68rem;
    font-weight: 700;
    color: #92400e;
    background: linear-gradient(180deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid rgba(251, 191, 36, 0.65);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    text-align: center;
    line-height: 1.3;
    box-shadow: 0 2px 8px rgba(180, 83, 9, 0.12);
}
.hero-inline-logo {
    height: 64px;
    width: auto;
    max-width: 64px;
    object-fit: contain;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.25));
}
.hero-badge-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}
.hero-subtitle {
    font-size: clamp(1rem, 2.2vw, 1.35rem);
    font-weight: 600;
    line-height: 1.45;
    color: rgba(255,255,255,0.95);
    text-shadow: 0 2px 8px rgba(0,0,0,0.35);
}
.hero.hero-premium {
    min-height: min(88vh, 920px);
    padding: clamp(7rem, 12vw, 10rem) 0 clamp(5rem, 10vw, 7rem) !important;
    background-color: #0a1628;
    background-image:
        linear-gradient(105deg, rgba(0, 23, 42, 0.94) 0%, rgba(0, 59, 92, 0.82) 42%, rgba(0, 100, 140, 0.55) 100%),
        url('/uploads/mekan/iznik/iznik-gol-1.jpeg');
    background-size: cover;
    background-position: center 35%;
    background-repeat: no-repeat;
}
/* Kurumsal ön yüz: harici stok fotoğraf yerine nötr desen (placeholder). */
.hero.hero-premium.hero-premium--placeholder {
    position: relative;
    background-color: #071a2c;
    background-image:
        linear-gradient(118deg, rgba(0, 26, 46, 0.97) 0%, rgba(0, 59, 92, 0.9) 48%, rgba(0, 111, 151, 0.78) 100%),
        radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.07) 0%, transparent 42%),
        radial-gradient(circle at 88% 12%, rgba(72, 182, 231, 0.12) 0%, transparent 38%),
        repeating-linear-gradient(-18deg, rgba(255, 255, 255, 0.028) 0 1px, transparent 1px 22px);
    background-blend-mode: normal, normal, normal, normal;
    background-size: auto, auto, auto, auto;
    background-position: center;
}
.hero.hero-premium::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M0 50 Q 25 25, 50 50 T 100 50" fill="none" stroke="rgba(255,255,255,0.06)" stroke-width="1"/></svg>');
    background-size: 120px 120px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}
.hero.hero-premium .container { position: relative; z-index: 1; }
.hero .row > [class*="col-"] {
    min-width: 0;
}
.hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    max-width: 100%;
    padding: 0.45rem 1rem 0.45rem 0.45rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 1.25rem;
}
.hero-chip img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px;
}
.hero-title-main {
    font-weight: 800;
    font-size: clamp(1.65rem, 4.2vw, 2.75rem);
    line-height: 1.18;
    letter-spacing: -0.03em;
    color: #fff;
    text-shadow: 0 4px 32px rgba(0, 0, 0, 0.45);
    margin-bottom: 0.85rem;
}
.hero-title-topics {
    font-size: clamp(0.95rem, 1.65vw, 1.15rem);
    font-weight: 500;
    line-height: 1.55;
    color: rgba(226, 232, 240, 0.95);
    max-width: 46rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}
.glass-panel.hero-glass {
    background: rgba(15, 23, 42, 0.45);
    border-color: rgba(255, 255, 255, 0.14);
    border-radius: 1.1rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}
.btn-hero-primary {
    background: linear-gradient(135deg, #0ea5e9 0%, #0085CA 55%, #006aa3 100%);
    color: #fff !important;
    font-weight: 700;
    border: none;
    border-radius: 999px;
    padding: 0.75rem 1.6rem;
    box-shadow: 0 8px 28px rgba(0, 133, 202, 0.45);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.btn-hero-primary:hover {
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(0, 133, 202, 0.55);
    filter: brightness(1.05);
}
.btn-hero-outline {
    color: #fff !important;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.85);
    border-radius: 999px;
    padding: 0.7rem 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn-hero-outline:hover {
    background: #fff !important;
    color: #0f172a !important;
    border-color: #fff !important;
    transform: translateY(-2px);
}
.hero-meta-premium {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    color: rgba(248, 250, 252, 0.95);
}
.hero-meta-premium .meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    max-width: 100%;
    min-width: 0;
}
.hero-meta-premium .meta-pill span {
    min-width: 0;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}
.theme-bullet-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.theme-bullet-list li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 1rem;
    color: var(--dsi-text);
}
.theme-bullet-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 50%;
    background: var(--dsi-teal);
}
.theme-item-card {
    position: relative;
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 0.95rem;
    padding: 0.95rem 1rem 0.95rem 3rem;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.theme-item-card:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 133, 202, 0.35);
    box-shadow: 0 10px 24px rgba(2, 132, 199, 0.12);
}
.theme-item-card p {
    font-size: 0.92rem;
    line-height: 1.62;
    color: #334155;
}
.theme-item-no {
    position: absolute;
    left: 0.9rem;
    top: 0.95rem;
    width: 1.55rem;
    height: 1.55rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, #0284c7 0%, #005f8f 100%);
}
.prose-block {
    font-size: 0.98rem;
    line-height: 1.75;
    color: var(--dsi-text);
}
.text-dsi-navy { color: var(--dsi-navy) !important; }
.nav-link {
    font-weight: 500;
    color: var(--dsi-text) !important;
    position: relative;
    padding: 0.5rem 1rem;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--dsi-teal);
    transition: all var(--transition-speed) ease;
    transform: translateX(-50%);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 80%;
}
.btn-dsi {
    background-color: var(--dsi-teal);
    color: white;
    font-weight: 600;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    transition: all var(--transition-speed);
}
.btn-dsi:hover {
    background-color: #006bb3;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 133, 202, 0.3);
}

/* Animations & Glassmorphism */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}
.floating {
    animation: float 5s ease-in-out infinite;
}
.floating-fast {
    animation: float 3s ease-in-out infinite;
}
.glass-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
}
.hero-shape {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
    z-index: 2;
}
.hero-shape svg {
    position: relative;
    display: block;
    width: 100%;
    height: 60px;
}
.hero-shape .shape-fill {
    fill: #ffffff;
}

/* Yaratıcı Görsel ve Animasyon Eklentileri */
.text-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #a5f3fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hakkında Bölümü Görsel Kompozisyonu */
.about-composition {
    position: relative;
    min-height: 480px;
    overflow-x: hidden;
}
.about-composition .main-img {
    width: 75%;
    border: 6px solid white;
    position: relative;
    z-index: 1;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1) !important;
}
.about-composition .sub-img {
    position: absolute;
    bottom: -5%;
    right: 0;
    width: 60%;
    border: 6px solid white;
    z-index: 2;
    box-shadow: 0 15px 30px rgba(0,0,0,0.15) !important;
}
.experience-badge {
    position: absolute;
    top: 15%;
    right: 5%;
    z-index: 3;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    border-left: 4px solid var(--dsi-teal);
}

/* Hakkında — sekme + okuma paneli */
.about-creative-wrap {
    background: linear-gradient(145deg, #f8fafc 0%, #ffffff 55%, #f1f5f9 100%);
    border: 1px solid rgba(15, 23, 42, 0.07);
    border-radius: 1.25rem;
    padding: 1.5rem 1.35rem 1.75rem;
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
}
@media (min-width: 768px) {
    .about-creative-wrap { padding: 1.75rem 1.75rem 2rem; }
}
.about-intro {
    font-size: 0.92rem;
    line-height: 1.55;
    color: #64748b;
    max-width: none;
    margin-bottom: 1.25rem;
}
.about-pills {
    gap: 0.4rem;
    flex-wrap: wrap;
    border: none;
    margin-bottom: 1.25rem !important;
}
.about-pills .nav-item { margin: 0; }
.about-pills .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border-radius: 999px;
    padding: 0.5rem 0.95rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: #334155 !important;
    background: #fff;
    border: 1px solid #e2e8f0;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.about-pills .nav-link::after { display: none !important; }
.about-pills .nav-link:hover {
    border-color: rgba(0, 133, 202, 0.35);
    color: var(--dsi-navy) !important;
    box-shadow: 0 4px 14px rgba(0, 133, 202, 0.1);
}
.about-pills .nav-link.active {
    background: linear-gradient(135deg, #0085CA 0%, #005f8f 100%);
    color: #fff !important;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(0, 133, 202, 0.28);
}
.about-pills .nav-link .about-pill-icon {
    width: 1.05rem;
    height: 1.05rem;
    flex-shrink: 0;
    opacity: 0.9;
}
.about-pills .nav-link.active .about-pill-icon { opacity: 1; }
.about-reading-pane {
    position: relative;
    background: #fff;
    border-radius: 1rem;
    border: 1px solid rgba(226, 232, 240, 0.95);
    padding: 1.15rem 1.2rem 1.25rem;
    min-height: 12rem;
}
@media (min-width: 768px) {
    .about-reading-pane { padding: 1.35rem 1.5rem 1.5rem; }
}
.about-reading-pane::before {
    content: '';
    position: absolute;
    top: 0;
    left: 1.25rem;
    right: 1.25rem;
    height: 3px;
    border-radius: 0 0 4px 4px;
    background: linear-gradient(90deg, var(--dsi-teal), #38bdf8);
    opacity: 0.75;
}
.about-reading {
    font-size: 0.9rem;
    line-height: 1.72;
    color: #475569;
    max-width: 52rem;
}
.about-reading p { margin-bottom: 0.85rem; }
.about-reading p:last-child { margin-bottom: 0; }
.about-reading .about-foot {
    font-size: 0.8rem;
    line-height: 1.55;
    color: #64748b;
    padding-top: 0.25rem;
    margin-top: 0.75rem;
    border-top: 1px dashed #e2e8f0;
}
.about-reading .about-highlight {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--dsi-navy);
    background: linear-gradient(90deg, rgba(0, 133, 202, 0.08), transparent);
    padding: 0.65rem 0.85rem;
    border-radius: 0.65rem;
    border-left: 3px solid var(--dsi-teal);
    margin-top: 0.5rem;
}
@media (min-width: 992px) {
    .about-reading {
        max-width: none;
        column-count: 2;
        column-gap: 2rem;
    }
    .about-reading p,
    .about-reading .about-foot,
    .about-reading .about-highlight {
        break-inside: avoid;
    }
}
.about-visual-band {
    margin-top: 0.25rem;
}
.about-composition-balanced {
    min-height: 400px;
    max-width: 100%;
}
@media (min-width: 992px) {
    .about-composition-balanced {
        min-height: 440px;
    }
}
.about-side-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 100%;
}
.about-fact-card {
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    background: linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 1rem;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
}
.about-fact-card .about-fact-badge {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--dsi-navy);
    background: rgba(0, 133, 202, 0.12);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    display: inline-block;
    margin-bottom: 0.5rem;
}
.about-fact-list {
    margin: 0;
    padding: 0;
    list-style: none;
}
.about-fact-list li {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    font-size: 0.85rem;
    line-height: 1.5;
    color: #475569;
}
.about-fact-list li:last-child { border-bottom: none; padding-bottom: 0; }
.about-fact-list .fact-ico {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    color: var(--dsi-teal);
    margin-top: 0.1rem;
}
.about-editions-card {
    background: linear-gradient(145deg, #0f172a 0%, #1e3a5f 100%);
    color: #e2e8f0;
    border-radius: 1rem;
    padding: 1.25rem 1.35rem;
    box-shadow: 0 12px 36px rgba(15, 23, 42, 0.2);
    flex: 1 1 auto;
    min-height: 0;
}
.about-editions-card h3 {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #94a3b8;
    margin-bottom: 0.85rem;
}
.about-edition-row {
    display: flex;
    gap: 0.65rem;
    align-items: baseline;
    font-size: 0.82rem;
    line-height: 1.45;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}
.about-edition-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.about-edition-row .ed-y {
    flex-shrink: 0;
    font-weight: 800;
    color: #7dd3fc;
    min-width: 5.5rem;
}
.about-side-actions .btn {
    font-size: 0.8rem;
}

/* Tema Kartları İleri Düzey Animasyon */
.theme-card {
    background: white;
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    height: 100%;
    position: relative;
    overflow: hidden;
    z-index: 1;
}
.theme-card-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    z-index: -1;
    transition: all 0.6s ease;
    transform: scale(1.15);
    filter: grayscale(100%);
}
.theme-card:hover .theme-card-bg {
    opacity: 0.18;
    transform: scale(1);
    filter: grayscale(0%);
}
.theme-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 45px rgba(0, 133, 202, 0.15);
    border-color: transparent;
}

/* Arkaplan Organik Bloblar (Damla Efektleri) */
.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    z-index: 0;
    opacity: 0.4;
    animation: float 12s infinite ease-in-out alternate;
    pointer-events: none;
}
.blob-1 {
    background: var(--dsi-aqua);
    width: 350px; height: 350px;
    top: 5%; left: -100px;
}
.blob-2 {
    background: var(--dsi-teal);
    width: 450px; height: 450px;
    bottom: -50px; right: -150px;
    animation-duration: 15s;
}

/* Hero Section */
/* AI IMAGE PROMPT: "modern institutional water symposium hero background, abstract hydrology contour lines, smart water infrastructure subtly blended, elegant deep navy, teal and white palette, premium lighting, realistic 3D-meets-photographic composition, no text, no watermark, ultra high definition" */
.hero {
    position: relative;
    color: white;
    padding: 180px 0 140px;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('data:image/svg+xml,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M0 50 Q 25 25, 50 50 T 100 50" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');
    background-size: cover;
    opacity: 0.4;
    pointer-events: none;
}
.hero h1 {
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.1;
}
.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 0.5rem 1.2rem;
    border-radius: 2rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}
.hero-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* Section Styling */
.section-padding {
    padding: 6rem 0;
}
.bg-light-alt {
    background-color: var(--dsi-light);
}
.section-title {
    color: var(--dsi-navy);
    font-weight: 700;
    position: relative;
    padding-bottom: 1rem;
    margin-bottom: 3rem;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--dsi-teal);
    border-radius: 2px;
}

/* Cards & Features */
.theme-card {
    background: white;
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all var(--transition-speed);
    height: 100%;
}
.theme-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    border-color: var(--dsi-aqua);
}
.theme-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--dsi-light) 0%, #e0f2fe 100%);
    color: var(--dsi-teal);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 16px rgba(0, 133, 202, 0.1);
    transition: all var(--transition-speed);
}
.theme-card:hover .theme-icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--dsi-teal);
    color: white;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background-color: #e2e8f0;
}
.timeline-item {
    position: relative;
    padding-bottom: 2rem;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.4rem;
    top: 0.3rem;
    width: 1rem;
    height: 1rem;
    background-color: var(--dsi-teal);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--dsi-teal);
}
.timeline-date {
    font-weight: 700;
    color: var(--dsi-teal);
    font-size: 1.1rem;
}

/* Program Tabs */
.nav-pills .nav-link {
    color: var(--dsi-gray);
    font-weight: 600;
    border-radius: 0.5rem;
    padding: 1rem 2rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    transition: background-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed), border-color var(--transition-speed);
}
.nav-pills .nav-link:hover {
    background-color: #f1f5f9;
    color: var(--dsi-navy) !important;
}
.nav-pills .nav-link.active {
    background-color: var(--dsi-navy);
    color: #ffffff !important;
    border-color: var(--dsi-navy);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.25);
}
@media (min-width: 1200px) {
    #mekanTabs {
        flex-wrap: nowrap;
        gap: 0.35rem !important;
    }
    #mekanTabs .nav-link {
        font-size: 0.9rem;
        padding: 0.75rem 0.95rem;
        margin-right: 0;
        margin-bottom: 0;
        white-space: nowrap;
    }
}
@media (min-width: 1200px) {
    #imkanTabs {
        flex-wrap: nowrap !important;
        gap: 0.35rem !important;
        overflow-x: visible;
    }
    #imkanTabs .nav-item {
        flex: 1 1 0;
        min-width: 0;
    }
    #imkanTabs .nav-link {
        width: 100%;
        font-size: 0.88rem;
        padding: 0.7rem 0.6rem;
        margin: 0;
        white-space: nowrap;
        text-align: center;
    }
}
@media (min-width: 1200px) and (max-width: 1365.98px) {
    #imkanTabs .nav-link {
        font-size: 0.8rem;
        padding: 0.58rem 0.38rem;
    }
}
.program-block {
    border-left: 4px solid var(--dsi-aqua);
    background: white;
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 0 0.5rem 0.5rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.program-time {
    font-weight: 700;
    color: var(--dsi-teal);
    width: 120px;
    flex-shrink: 0;
}

/* Speakers */
.speaker-card {
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}
.speaker-img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 4px solid var(--dsi-light);
    box-shadow: 0 8px 20px rgba(0,0,0,0.06);
    transition: transform var(--transition-speed);
}
.speaker-card:hover .speaker-img {
    transform: scale(1.05);
    border-color: var(--dsi-aqua);
}
.speaker-img-lutfi {
    object-position: center 28%;
}

/* Registration Cards */
.reg-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    overflow: hidden;
    height: 100%;
    transition: all var(--transition-speed);
}
.reg-card:hover {
    border-color: var(--dsi-teal);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.reg-header {
    background: var(--dsi-light);
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
    min-height: 126px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.25rem;
}
#registration .reg-header h3 {
    font-size: 0.95rem;
    line-height: 1.35;
    min-height: 2.4em;
    margin-bottom: 0.35rem !important;
}
.reg-price-wrap {
    display: grid;
    gap: 0.35rem;
}
.reg-price-line {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
    border-top: 1px solid #e2e8f0;
    padding-top: 0.35rem;
}
.reg-price-line--discount {
    border-top: 0;
    padding-top: 0;
    padding-bottom: 0.15rem;
}
.reg-price-label {
    font-size: 0.76rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.reg-price-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--dsi-navy);
}
.reg-price-value--discount {
    font-size: 1.35rem;
    color: #0284c7;
    text-shadow: 0 1px 0 rgba(255,255,255,0.75);
}
.reg-price-value--regular {
    color: #94a3b8;
    text-decoration: line-through;
    text-decoration-thickness: 2px;
    text-decoration-color: #ef4444;
    font-size: 1rem;
    font-weight: 700;
}
#registration .reg-card > .p-4 {
    display: flex;
    flex-direction: column;
    min-height: 0;
}
#registration .reg-card .p-4 p {
    flex: 1;
}
#registration .reg-card .btn {
    margin-top: 0;
}

/* Ulasim */
.ulasim-card {
    background: #fff;
    border: 1px solid #dbe5ef;
    border-radius: 1rem;
    padding: 1.25rem;
    box-shadow: 0 8px 24px rgba(13, 38, 59, 0.06);
}
.ulasim-note {
    background: #f8fbff;
    border: 1px solid #e2ecf5;
    border-radius: 0.75rem;
    padding: 0.9rem 1rem;
}
.ulasim-map-wrap {
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid #dbe5ef;
    box-shadow: 0 12px 28px rgba(13, 38, 59, 0.08);
    background: #fff;
}

/* Footer */
.footer {
    background-color: var(--dsi-navy-dark);
    color: rgba(255,255,255,0.7);
    padding: 4rem 0 2rem;
    border-top: 5px solid var(--dsi-teal);
}
.footer h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 1.5rem;
}
.footer a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color var(--transition-speed);
}
.footer a:hover {
    color: white;
}
.footer-wave {
    width: 100%;
    height: auto;
    display: block;
    background-color: var(--dsi-navy-dark);
}

/* Custom Form Inputs */
.form-control, .form-select {
    padding: 0.8rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid #cbd5e1;
}
.form-control:focus, .form-select:focus {
    border-color: var(--dsi-teal);
    box-shadow: 0 0 0 0.25rem rgba(0, 133, 202, 0.15);
}

/* 404 sayfası — ana şablonla aynı üst/alt çerçeve */
.usms-error-page {
    min-height: 60vh;
    padding-top: clamp(5.5rem, 12vw, 7rem);
    padding-bottom: 4rem;
}
.usms-error-page .usms-error-code {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #64748b;
    margin-bottom: 0.75rem;
}
.usms-error-page .usms-error-title {
    font-weight: 800;
    color: var(--dsi-navy);
    font-size: clamp(1.65rem, 4vw, 2.35rem);
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

/* Sponsorluk - daha satış odaklı görünüm */
.sponsor-highlight {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 1rem;
    padding: 1.25rem;
    background: linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
}
.sponsor-chip {
    display: inline-block;
    background: rgba(0, 133, 202, 0.12);
    color: var(--dsi-navy);
    border: 1px solid rgba(0, 133, 202, 0.2);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}
.sponsor-logo-wall {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}
.sponsor-logo-item {
    border: 1px dashed #cbd5e1;
    border-radius: 0.85rem;
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #64748b;
    background: #fff;
}
.sponsor-pack-card {
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 1rem;
    padding: 1rem;
    background: #fff;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}
.sponsor-pack-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dsi-navy);
    margin-bottom: 0.45rem;
}
.sponsor-pack-card p {
    margin: 0;
    font-size: 0.86rem;
    color: #64748b;
    line-height: 1.6;
}

/* —— USMS kurumsal ön yüz refaktörü —— */
.usms-readable {
    line-height: 1.65;
    max-width: 72ch;
    margin-left: auto;
    margin-right: auto;
}
.usms-content-card {
    border: 1px solid rgba(15, 23, 42, 0.06) !important;
}
.usms-accordion .accordion-button {
    font-weight: 700;
    color: var(--dsi-navy);
    background: #fff;
}
.usms-accordion .accordion-button:not(.collapsed) {
    background: rgba(0, 59, 92, 0.06);
    color: var(--dsi-navy);
    box-shadow: none;
}
.usms-price-table-wrap table {
    font-size: 0.95rem;
}
.usms-price-note {
    border-left: 4px solid #b45309 !important;
}
.nav-cta-badge.nav-cta-badge--corporate {
    background: linear-gradient(180deg, #fef3c7 0%, #fde68a 100%);
    color: #78350f;
    border: 1px solid rgba(180, 83, 9, 0.35);
    font-weight: 700;
    font-size: 0.68rem;
    max-width: min(16rem, 46vw);
    line-height: 1.25;
    text-align: center;
    padding: 0.35rem 0.5rem;
    border-radius: 0.5rem;
}
.btn-nav-login {
    font-weight: 600;
    border-width: 2px;
    color: var(--dsi-navy) !important;
    border-color: rgba(0, 59, 92, 0.35) !important;
}
.speaker-card .speaker-card-photo {
    aspect-ratio: 4 / 3;
    object-fit: contain;
    max-height: 260px;
    background: linear-gradient(180deg, #f8fbff 0%, #eef4fb 100%);
    padding: 0.35rem;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}
.speaker-photo--crop-top {
    object-position: center center;
}
.speaker-card-body {
    padding: 1rem 1rem 1.1rem;
}
.speaker-summary {
    line-height: 1.55;
    margin-bottom: 0.9rem;
}
.speaker-cv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    border-radius: 999px;
    font-weight: 700;
    border: 1px solid #0277b3;
    color: #fff !important;
    background: linear-gradient(180deg, #0284c7 0%, #0369a1 100%);
    padding: 0.45rem 0.95rem;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.22);
    transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.speaker-cv-btn:hover,
.speaker-cv-btn:focus {
    color: #fff !important;
    background: linear-gradient(180deg, #0369a1 0%, #075985 100%);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(3, 105, 161, 0.28);
}
.speaker-bio-modal .modal-content {
    border: 1px solid rgba(0, 59, 92, 0.14);
    border-radius: 0.9rem;
    overflow: hidden;
}
.speaker-bio-modal-header {
    background: linear-gradient(180deg, #f8fbff 0%, #eef6ff 100%);
}
.speaker-bio-modal-body {
    padding: 1rem 1.15rem 1.1rem;
}
.speaker-bio-list li {
    line-height: 1.6;
}
.transport-route-card {
    border: 1px solid rgba(15, 23, 42, 0.06) !important;
    border-left: 4px solid var(--dsi-teal) !important;
}
.transport-title-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    margin-right: 0.35rem;
    font-size: 1rem;
}
.transport-bullet-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.55rem;
}
.transport-bullet-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    background: #f8fbff;
    border: 1px solid #e2ecf5;
    border-radius: 0.65rem;
    padding: 0.55rem 0.65rem;
    font-size: 0.92rem;
    line-height: 1.5;
    color: #334155;
}
.transport-bullet-icon {
    color: #0284c7;
    font-weight: 800;
    margin-top: 1px;
    flex: 0 0 auto;
}
.usms-board-card {
    border: 1px solid rgba(15, 23, 42, 0.06) !important;
}
.usms-date-card {
    border: 1px solid rgba(15, 23, 42, 0.06) !important;
}
.usms-download-zone {
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
}
.committee-accordion {
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: #ffffff;
    border-radius: 1rem;
    overflow: hidden;
}
.committee-shell {
    border-radius: 1.1rem;
    background: linear-gradient(180deg, #f8fbff 0%, #eef6ff 100%);
    border: 1px solid rgba(2, 132, 199, 0.18);
    padding: 1rem;
    box-shadow: 0 12px 26px rgba(2, 132, 199, 0.08);
}
#boards {
    background: #ffffff !important;
    border-top: 0 !important;
    border-bottom: 0 !important;
}
#themes,
#speakers,
#authors,
#transportation {
    background: linear-gradient(180deg, #f5f9ff 0%, #edf5ff 100%) !important;
    border-top: 1px solid rgba(2, 132, 199, 0.1) !important;
    border-bottom: 1px solid rgba(2, 132, 199, 0.1) !important;
}
#mekan-ve-tesis {
    background: linear-gradient(180deg, #f5f9ff 0%, #edf5ff 100%);
    border-top: 1px solid rgba(2, 132, 199, 0.1);
    border-bottom: 1px solid rgba(2, 132, 199, 0.1);
}
.committee-shell-head {
    padding: 0.1rem 0.2rem 0.2rem;
}
.committee-kicker {
    color: #0369a1;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
}
.committee-accordion-item {
    border-color: rgba(148, 163, 184, 0.25) !important;
}
.committee-accordion-item--white {
    background-color: #ffffff !important;
}
.committee-accordion-item--blue {
    background-color: #eef5ff !important;
}
.committee-accordion-item--blue .accordion-button,
.committee-accordion-item--blue .accordion-body {
    background-color: transparent !important;
}
.committee-accordion-button,
.committee-accordion-button:not(.collapsed) {
    background-color: transparent !important;
    color: #0f172a;
    box-shadow: none !important;
    gap: 0.7rem;
    padding-top: 1rem;
    padding-bottom: 1rem;
}
.committee-pill {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 800;
    background: linear-gradient(180deg, #0284c7 0%, #0369a1 100%);
    color: #ffffff;
    flex: 0 0 auto;
}
.committee-accordion-button:not(.collapsed) .committee-pill {
    background: linear-gradient(180deg, #0ea5e9 0%, #0284c7 100%);
    box-shadow: 0 6px 14px rgba(2, 132, 199, 0.26);
}
.committee-accordion-item .accordion-body {
    background-color: transparent !important;
}
.committee-accordion .accordion-body {
    padding-top: 0.5rem;
    padding-bottom: 1rem;
    border-top: 1px dashed rgba(2, 132, 199, 0.2);
}
.letter-spacing-tight {
    letter-spacing: 0.04em;
}