/* ===== Tanıtım Sitesi — "Derin Su" immersive tema ===== */
:root {
    --derin: #082f49;
    --koyu: #0c4a6e;
    --marka: #0284c7;
    --marka-koyu: #0369a1;
    --turkuaz: #06b6d4;
    --acik-turkuaz: #22d3ee;
    --acik-zemin: #f0f9ff;
    --metin: #0f172a;
    --metin-soluk: #475569;
    --cam: rgba(255, 255, 255, 0.1);
    --cam-cizgi: rgba(255, 255, 255, 0.22);
}

.site-body {
    font-family: "Work Sans", system-ui, sans-serif;
    color: var(--metin);
    font-size: 1.02rem;
    line-height: 1.65;
    background: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, .navbar-brand, .footer-brand, .sayac-deger {
    font-family: "Outfit", "Work Sans", sans-serif;
}

html {
    scroll-behavior: smooth;
}

/* ============ NAVBAR — koyu cam ============ */
.site-navbar {
    background: rgba(8, 47, 73, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-navbar .navbar-brand {
    font-weight: 800;
    font-size: 1.4rem;
    color: #fff;
    padding-top: 0;
    padding-bottom: 0;
}

.site-navbar .marka-logo {
    height: 52px;
    max-width: 240px;
}

.marka-logo {
    display: block;
    height: 88px;
    width: auto;
    max-width: 400px;
    object-fit: contain;
    border-radius: 0.4rem;
}

.marka-logo-footer {
    height: 100px;
    max-width: 440px;
}

.site-navbar .navbar-brand i {
    color: var(--acik-turkuaz);
}

.site-navbar .nav-link {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    padding: 0.6rem 1rem;
    border-radius: 2rem;
}

.site-navbar .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.site-navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
}

.site-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.btn-ara {
    background: linear-gradient(135deg, var(--turkuaz), var(--marka));
    color: #fff;
    font-weight: 700;
    border-radius: 2rem;
    padding: 0.6rem 1.4rem;
    border: 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-ara:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.45);
}

/* ============ HERO — derin su ============ */
.hero {
    position: relative;
    background:
        radial-gradient(1200px 600px at 85% -10%, rgba(34, 211, 238, 0.25), transparent 60%),
        radial-gradient(900px 500px at -10% 110%, rgba(2, 132, 199, 0.35), transparent 55%),
        linear-gradient(165deg, var(--derin) 0%, var(--koyu) 45%, var(--marka-koyu) 100%);
    color: #fff;
    padding: 5.5rem 0 0;
    overflow: hidden;
    isolation: isolate;
}

.hero-tam {
    /* Ekran yüksekliğine uyum sağlar ama devasa ekranlarda şişmez */
    min-height: min(92dvh, 820px);
    display: flex;
    flex-direction: column;
}

.hero-tam > .container {
    margin-top: auto;
}

.hero-tam > .dalga-katman {
    margin-top: auto;
}

.hero-ic {
    padding-top: 4rem;
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.02em;
}

.hero h1 .vurgulu {
    background: linear-gradient(90deg, var(--acik-turkuaz), #7dd3fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.hero p.tanitim {
    font-size: 1.18rem;
    color: rgba(224, 242, 254, 0.85);
    max-width: 560px;
}

/* Su kabarcıkları */
.kabarciklar {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.kabarcik {
    position: absolute;
    bottom: -60px;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 30%, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.06) 60%);
    border: 1px solid rgba(255, 255, 255, 0.16);
    animation: yuksel linear infinite;
}

@keyframes yuksel {
    0% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 0;
    }
    8% {
        opacity: 1;
    }
    92% {
        opacity: 1;
    }
    100% {
        transform: translateY(-110vh) translateX(30px) scale(1.15);
        opacity: 0;
    }
}

/* Cam rozet çipleri */
.cam-cip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--cam);
    border: 1px solid var(--cam-cizgi);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #e0f2fe;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.55rem 1.1rem;
    border-radius: 2rem;
}

.cam-cip i {
    color: var(--acik-turkuaz);
}

/* CTA butonları */
.btn-buyuk-cta {
    font-size: 1.15rem;
    font-weight: 700;
    padding: 0.95rem 2.1rem;
    border-radius: 2.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    min-height: 56px;
}

.btn-buyuk-cta:hover {
    transform: translateY(-3px);
}

.btn-cta-birincil {
    background: linear-gradient(135deg, var(--acik-turkuaz), var(--marka));
    border: 0;
    color: #052e42;
    color: #fff;
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.45), 0 0 0 0 rgba(34, 211, 238, 0.4);
    animation: isilti 2.6s ease-in-out infinite;
}

.btn-cta-birincil:hover {
    color: #fff;
    box-shadow: 0 14px 36px rgba(6, 182, 212, 0.6);
}

@keyframes isilti {
    0%, 100% { box-shadow: 0 10px 30px rgba(6, 182, 212, 0.45), 0 0 0 0 rgba(34, 211, 238, 0.35); }
    50% { box-shadow: 0 10px 30px rgba(6, 182, 212, 0.45), 0 0 0 16px rgba(34, 211, 238, 0); }
}

.btn-cta-ikincil {
    background: var(--cam);
    border: 1px solid var(--cam-cizgi);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
}

.btn-cta-ikincil:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* Beyaz zeminde ikincil buton */
.btn-cta-acik {
    border: 2px solid var(--marka);
    color: var(--marka-koyu);
    background: #fff;
}

.btn-cta-acik:hover {
    background: var(--acik-zemin);
    color: var(--marka-koyu);
}

/* Damacana görsel sahnesi */
.hero-sahne {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 24rem;
}

.hero-sahne::before {
    content: "";
    position: absolute;
    width: 22rem;
    height: 22rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.35), rgba(34, 211, 238, 0.08) 55%, transparent 70%);
    filter: blur(6px);
}

.hero-halka {
    position: absolute;
    border-radius: 50%;
    border: 2px dashed rgba(125, 211, 252, 0.55);
    animation: don 40s linear infinite;
}

.hero-halka.h1x {
    width: min(24rem, 70vw);
    height: min(24rem, 70vw);
}

.hero-halka.h2x {
    width: min(31rem, 88vw);
    height: min(31rem, 88vw);
    animation-direction: reverse;
    animation-duration: 60s;
    border-style: dotted;
}

@keyframes don {
    to { transform: rotate(360deg); }
}

.hero-ikon {
    font-size: clamp(8rem, 16vw, 13rem);
    background: linear-gradient(180deg, #e0f2fe 5%, #7dd3fc 45%, var(--acik-turkuaz));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 24px 48px rgba(6, 182, 212, 0.55));
    animation: sallan 5s ease-in-out infinite;
}

@keyframes sallan {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-18px) rotate(2deg); }
}

/* Dalga katmanları */
.dalga-katman {
    position: relative;
    height: 90px;
    margin-top: 2rem;
}

.dalga-katman svg {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 200%;
    height: 100%;
}

.dalga-1 {
    animation: dalga-kay 14s linear infinite;
    opacity: 0.35;
}

.dalga-2 {
    animation: dalga-kay 9s linear infinite reverse;
    opacity: 0.55;
}

.dalga-3 {
    animation: dalga-kay 6s linear infinite;
}

@keyframes dalga-kay {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Eski tek dalga (iç sayfalar) */
.dalga {
    display: block;
    width: 100%;
    height: 70px;
    margin-bottom: -1px;
}

/* ============ KAYAN ŞERİT (marquee) ============ */
.serit {
    background: linear-gradient(90deg, var(--turkuaz), var(--marka));
    color: #fff;
    overflow: hidden;
    padding: 0.85rem 0;
    white-space: nowrap;
}

.serit-ic {
    display: inline-flex;
    gap: 2.5rem;
    padding-right: 2.5rem;
    font-family: "Outfit", sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.06em;
    animation: serit-kay 22s linear infinite;
}

.serit-ic i {
    margin-right: 0.4rem;
}

@keyframes serit-kay {
    to { transform: translateX(-50%); }
}

/* ============ SAYAÇLAR ============ */
.sayac-band {
    padding: 3.5rem 0;
    background: #fff;
}

.sayac-deger {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: var(--marka);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.sayac-etiket {
    color: var(--metin-soluk);
    font-weight: 600;
    margin-top: 0.35rem;
}

/* ============ BÖLÜMLER ============ */
.bolum {
    padding: 4.5rem 0;
}

.bolum-acik {
    background:
        radial-gradient(800px 400px at 90% 0%, rgba(34, 211, 238, 0.08), transparent 60%),
        var(--acik-zemin);
}

.bolum-baslik {
    font-weight: 800;
    font-size: clamp(1.7rem, 4vw, 2.4rem);
    text-align: center;
    letter-spacing: -0.02em;
}

.bolum-alt {
    color: var(--metin-soluk);
    text-align: center;
    max-width: 620px;
    margin: 0.5rem auto 0;
}

.mini-etiket {
    display: inline-block;
    background: rgba(2, 132, 199, 0.1);
    color: var(--marka-koyu);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
}

/* ============ ÖZELLİK KARTLARI ============ */
.ozellik-kart {
    position: relative;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid #e2e8f0;
    border-radius: 1.4rem;
    padding: 2rem 1.5rem;
    text-align: center;
    height: 100%;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.ozellik-kart::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--acik-turkuaz), var(--marka));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.ozellik-kart:hover {
    transform: translateY(-8px);
    box-shadow: 0 22px 44px rgba(8, 47, 73, 0.14);
    border-color: rgba(6, 182, 212, 0.5);
}

.ozellik-kart:hover::before {
    opacity: 1;
}

.ozellik-ikon {
    width: 76px;
    height: 76px;
    border-radius: 1.4rem;
    background: linear-gradient(135deg, var(--acik-turkuaz), var(--marka));
    color: #fff;
    font-size: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.1rem;
    box-shadow: 0 10px 24px rgba(6, 182, 212, 0.35);
    transform: rotate(-4deg);
    transition: transform 0.25s ease;
}

.ozellik-kart:hover .ozellik-ikon {
    transform: rotate(0deg) scale(1.06);
}

.ozellik-kart h5 {
    font-weight: 700;
}

.ozellik-kart p {
    color: var(--metin-soluk);
    margin-bottom: 0;
}

/* ============ ADIMLAR (zaman çizgisi) ============ */
.adimlar {
    position: relative;
}

@media (min-width: 768px) {
    .adimlar::before {
        content: "";
        position: absolute;
        top: 28px;
        left: 16%;
        right: 16%;
        height: 3px;
        background: repeating-linear-gradient(90deg, var(--turkuaz) 0 14px, transparent 14px 26px);
        opacity: 0.5;
    }
}

.adim-no {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acik-turkuaz), var(--marka));
    color: #fff;
    font-family: "Outfit", sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(2, 132, 199, 0.35);
}

/* ============ CTA BANDI ============ */
.cta-band {
    position: relative;
    background:
        radial-gradient(900px 400px at 15% 0%, rgba(34, 211, 238, 0.25), transparent 55%),
        linear-gradient(150deg, var(--derin), var(--koyu) 60%, var(--marka-koyu));
    color: #fff;
    padding: 4.5rem 0;
    text-align: center;
    overflow: hidden;
    isolation: isolate;
}

.cta-band h2 {
    font-weight: 800;
    font-size: clamp(1.7rem, 4vw, 2.6rem);
}

.cta-telefon {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    background: #fff;
    color: var(--marka-koyu);
    font-family: "Outfit", sans-serif;
    font-weight: 800;
    font-size: clamp(1.4rem, 5vw, 2.3rem);
    padding: 1rem 2.4rem;
    border-radius: 3rem;
    text-decoration: none;
    margin-top: 1.4rem;
    box-shadow: 0 16px 40px rgba(2, 8, 20, 0.45);
    transition: transform 0.2s ease;
}

.cta-telefon:hover {
    transform: scale(1.05);
    color: var(--derin);
}

.cta-telefon i {
    color: var(--turkuaz);
}

/* ============ FOOTER ============ */
.site-footer {
    background: var(--derin);
    color: #cbd5e1;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer a {
    color: #e0f2fe;
    text-decoration: none;
}

.site-footer a:hover {
    color: #fff;
}

.footer-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
}

.footer-brand i {
    color: var(--acik-turkuaz);
}

.footer-baslik {
    color: #fff;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer-alt {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #64748b;
    font-size: 0.9rem;
}

.giris-linki {
    color: #64748b !important;
    font-size: 0.9rem;
}

/* ============ MOBİL ARA BUTONU ============ */
.mobil-ara-butonu {
    position: fixed;
    right: 1.1rem;
    bottom: 1.1rem;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    font-size: 1.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(22, 163, 74, 0.45);
    z-index: 1040;
    animation: nabiz 2.2s ease-in-out infinite;
}

.mobil-ara-butonu:hover {
    color: #fff;
}

@keyframes nabiz {
    0%, 100% { box-shadow: 0 10px 25px rgba(22, 163, 74, 0.45); }
    50% { box-shadow: 0 10px 25px rgba(22, 163, 74, 0.45), 0 0 0 14px rgba(22, 163, 74, 0.12); }
}

/* ============ İLETİŞİM ============ */
.iletisim-bilgi-kart {
    background: var(--acik-zemin);
    border-radius: 1.4rem;
    padding: 2rem;
    height: 100%;
}

.iletisim-bilgi-kart .satir {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    margin-bottom: 1.25rem;
}

.iletisim-bilgi-kart .satir i {
    font-size: 1.3rem;
    color: var(--marka);
    margin-top: 0.15rem;
}

.iletisim-form .form-control {
    min-height: 52px;
    font-size: 1.05rem;
}

.iletisim-form textarea.form-control {
    min-height: 130px;
}

/* ============ Hareket azaltma ============ */
@media (prefers-reduced-motion: reduce) {
    .kabarcik,
    .hero-ikon,
    .hero-halka,
    .dalga-1, .dalga-2, .dalga-3,
    .serit-ic,
    .btn-cta-birincil,
    .mobil-ara-butonu {
        animation: none !important;
    }
}