:root {
    --brand: #43B9B2;
    --accent: #FF9F55;
    --secondary: #006F77;
    --ink: #e9ecf3;
    --muted: #a0a6ba;
    --card: #11162b;
    --text: #e9ecf3;
    --line: #2a355a;
    --bg: #0b1020
}

html,
body {
    scroll-behavior: smooth;
}

body {
    background: radial-gradient(900px 600px at 10% -10%, #43B9B233 0, transparent 60%), radial-gradient(900px 600px at 90% 0%, #006F7729 0, transparent 55%), linear-gradient(180deg, var(--bg), var(--bg));
    color: var(--ink)
}

a {
    color: #ccf2ef;
    text-decoration: none
}

a:hover {
    color: var(--accent)
}

.navbar {
    background: #0b1020cc;
    backdrop-filter: blur(10px)
}

.navbar-brand {
    font-weight: 800;
    color: var(--brand) !important
}


/* aktif link */
.nav-link {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease, border-bottom 0.3s ease;
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: #00bcd4;
}

.nav-link.active {
    color: #43b9b2 !important;
    border-bottom: 2px solid #00bcd4;
}

.btn-brand {
    background: var(--brand);
    border: 0;
    color: #fff;
    box-shadow: 0 12px 28px #43b9b222;
    transition: .25s
}

.btn-brand:hover {
    background: var(--accent);
    transform: translateY(-2px)
}

.btn-ghost {
    background: transparent;
    border: 1px solid #ffffff33;
    color: #fff;
    transition: .25s
}

.btn-ghost:hover {
    border-color: var(--brand);
    transform: translateY(-2px)
}

/* HEADER */
header.navbar {
    background: rgba(8, 10, 22, 0.1);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #1c233b;
    padding: 0.75rem 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    color: #fff !important;
}

.navbar-brand .logo {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--secondary));
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #fff;
}

.nav-link {
    color: #d0d6ec !important;
    font-weight: 500;
    transition: 0.3s;
}

.nav-link:hover {
    color: var(--brand) !important
}

.btn-outline-glow {
    border: 1px solid #43b9b2aa;
    color: #fff;
    border-radius: 50rem;
    padding: 0.45rem 1.4rem;
    transition: .3s;
    box-shadow: inset 0 0 0 1px #1a2444, 0 0 15px #43b9b233;
    background: transparent;
}

.btn-outline-glow:hover {
    border-color: var(--brand);
    box-shadow: 0 0 25px #43b9b244;
    transform: translateY(-2px);
}

/* HERO */
.hero {
    position: relative;
    padding: 9rem 0 6rem;
    overflow: hidden
}

.hero .orb {
    position: absolute;
    inset: auto -10vmax -15vmax auto;
    width: 60vmax;
    height: 60vmax;
    border-radius: 50%;
    background: conic-gradient(from 0deg, var(--brand) 55, var(--accent) 33, var(--secondary) 44, var(--brand) 55);
    filter: blur(70px);
    opacity: .22;
    animation: float 12s ease-in-out infinite
}

@keyframes float {
    50% {
        transform: translateY(24px) rotate(20deg)
    }
}

.glow {
    position: absolute;
    inset: -40% -20% auto -20%;
    height: 80%;
    background: radial-gradient(900px 400px at 30% 10%, #43b9b22a, transparent 60%), radial-gradient(700px 400px at 80% 0%, #ff9f5524, transparent 55%)
}

.glass {
    background: rgba(255, 255, 255, .06);
    border: 1px solid #ffffff1a;
    border-radius: 1.25rem;
}

.card {
    background: var(--card);
    border-color: var(--line);
    border-radius: 1.25rem
}

.card.hoverable {
    transition: transform .25s ease, box-shadow .25s ease
}

.card.hoverable:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px #0007
}

.icon-chip {
    width: 60px;
    height: 60px;
    display: grid;
    place-items: center;
    border-radius: 1rem;
    background: #ffffff10;
    border: 1px solid #ffffff18;
    font-size: 1.25rem
}

.section-title {
    color: #fff
}

.muted {
    color: var(--muted)
}

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #ffffff22, transparent)
}

.py-6 {
    padding-block: 4.5rem
}

/* Warum GT-Visual modern */
.why-us {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
    padding: 3rem 2rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
}

.why-us::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(800px 400px at 20% 0%, rgba(67, 185, 178, 0.12), transparent 70%);
    z-index: 0;
}

.why-header {
    position: relative;
    z-index: 1;
}

.why-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
    margin-top: 2rem;
}

.why-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem 1rem;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}

.why-item:hover {
    transform: translateY(-6px);
    border-color: var(--brand);
    box-shadow: 0 0 25px rgba(67, 185, 178, 0.25);
}

.why-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin: 0 auto 1rem;
    font-size: 1.6rem;
    color: var(--brand);
    background: rgba(67, 185, 178, 0.08);
    border: 1px solid rgba(67, 185, 178, 0.2);
    box-shadow: inset 0 0 20px rgba(67, 185, 178, 0.15);
    transition: all .3s ease;
}

.why-item:hover .why-icon {
    background: linear-gradient(135deg, var(--brand), var(--secondary));
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(67, 185, 178, 0.4);
}

.why-item h5 {
    color: #fff;
    font-weight: 700;
    font-size: 1.4rem;
    margin-bottom: .25rem;
}

.why-item p {
    color: var(--muted);
    font-size: .95rem;
    margin: 0;
}

/* USP BAR */
.usp {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem
}

@media (min-width: 992px) {
    .usp {
        grid-template-columns: repeat(4, 1fr)
    }
}

.usp .u {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: #0f1732;
    border: 1px solid #233059;
    border-radius: .9rem;
    padding: .8rem 1rem
}

.u i {
    color: var(--brand)
}

/* Masonry */
.masonry {
    column-count: 1;
    column-gap: 1.25rem
}

@media (min-width: 768px) {
    .masonry {
        column-count: 2
    }
}

@media (min-width: 1200px) {
    .masonry {
        column-count: 3
    }
}

.project {
    position: relative;
    display: block;
    break-inside: avoid;
    margin-bottom: 1.25rem;
    border-radius: 1rem;
    overflow: hidden
}

.project img {
    display: block;
    width: 100%;
    height: auto
}

.badge-cat {
    position: absolute;
    top: .75rem;
    left: .75rem;
    background: rgba(0, 0, 0, .45);
    backdrop-filter: blur(6px);
    border: 1px solid #ffffff33;
    color: #fff;
    padding: .25rem .6rem;
    border-radius: 999px;
    font-size: .75rem
}

.project .shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, #0000 40%, #000a 100%);
    opacity: 0;
    transition: opacity .25s ease
}

.project:hover .shade {
    opacity: 1
}

.project .meta {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 1rem;
    color: #fff
}

.project .cta {
    position: absolute;
    right: 1rem;
    bottom: 1rem
}

/* Filter pills */
.filter .pill {
    border: 1px solid #2a355a;
    color: #cbd6ff;
    background: #121937;
    border-radius: 999px;
    padding: .4rem .9rem;
    cursor: pointer;
    user-select: none
}

.filter .pill.active {
    border-color: var(--brand);
    box-shadow: 0 0 0 .12rem #43b9b233
}

/* So arbeiten wir */
.timeline {
    position: relative;
    margin-top: 3rem;
    border-left: 2px solid #1f2a4f;
    padding-left: 2rem;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 1rem;
}

.timeline-icon {
    position: absolute;
    left: -1.25rem;
    top: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--brand), var(--secondary));
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.2rem;
    box-shadow: 0 0 20px #43b9b244;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid #ffffff15;
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform .3s ease, box-shadow .3s ease;
}

.timeline-content:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.timeline-content h5 {
    color: #fff;
    font-weight: 600;
    margin-bottom: .5rem;
}

.timeline-content p {
    color: #a9b4d0;
    margin-bottom: .75rem;
}

@media (min-width: 992px) {
    .timeline {
        border-left: none;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1.5rem;
        padding-left: 0;
    }

    .timeline-item {
        margin: 0;
        padding-left: 0;
    }

    .timeline-icon {
        position: static;
        margin: 0 auto 1rem auto;
    }

    .timeline-content {
        text-align: center;
    }
}

/* Kunden & Partner */
#clients .container {
    max-width: 1200px;
    /* diğer bölümlerle birebir uyumlu genişlik */
}

#clients {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.client-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 3rem 5rem;
    /* yatay ve dikey boşluklar */
}

/* SVG logoların küçük görünmesini engellemek için */
#clients img {
    max-height: 100px;
    /* büyük ve orantılı */
    width: auto;
    aspect-ratio: auto;
    object-fit: contain;
    opacity: 0.9;
    filter: grayscale(100%) brightness(0.9) contrast(1.1);
    transition: all 0.3s ease;
}

/* Hover efekti */
#clients img:hover {
    opacity: 1;
    filter: grayscale(0%) brightness(1.1);
    transform: scale(1.08);
}

/* Responsive düzen */
@media (max-width: 992px) {
    #clients img {
        max-height: 80px;
    }

    .client-grid {
        gap: 2rem 3rem;
    }
}

@media (max-width: 576px) {
    #clients img {
        max-height: 60px;
    }

    .client-grid {
        gap: 1.5rem 2rem;
    }
}

/* Kundenstimmen */
#testimonials {
    background: linear-gradient(180deg, #0b1020 0%, #10162e 100%);
    position: relative;
}

#testimonials::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(700px 400px at 25% 20%, rgba(67, 185, 178, 0.08), transparent 70%),
        radial-gradient(700px 400px at 80% 0%, rgba(255, 159, 85, 0.06), transparent 70%);
    z-index: 0;
}

#testimonials .container {
    position: relative;
    z-index: 2;
    max-width: 1100px;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
    align-items: stretch;
}

.testimonial {
    padding: 2.5rem 2rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
    position: relative;
    box-shadow: 0 0 0 transparent;
}

.testimonial:hover {
    transform: translateY(-6px);
    border-color: var(--brand);
    box-shadow: 0 10px 30px rgba(67, 185, 178, 0.15);
}

.text-brand {
    color: var(--brand);
}

.stars i {
    margin: 0 2px;
    font-size: 1rem;
}

.testimonial p {
    line-height: 1.6;
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .testimonial {
        padding: 2rem 1.5rem;
    }
}

/* Kontakt modern */
.contact-wrap {
    display: grid;
    gap: 1.5rem
}

@media (min-width: 992px) {
    .contact-wrap {
        grid-template-columns: 1fr 1fr
    }
}

.form-modern {
    background: linear-gradient(180deg, #0f1530, #0d142b);
    border: 1px solid #243056;
    border-radius: 1.25rem;
    padding: 1.25rem
}

.form-modern .form-floating>.form-control,
.form-modern .form-floating>.form-select {
    background: #0f1736;
    border-color: #2a355a;
    color: #e9ecf3
}

.form-modern .form-floating>.form-control:focus,
.form-modern .form-floating>.form-select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 .2rem #43b9b233
}

.form-modern .form-floating>label {
    color: #a9b4d0
}

.cta-gradient {
    background: linear-gradient(90deg, var(--brand), var(--secondary));
    border: 0
}

.cta-gradient:hover {
    filter: brightness(1.05)
}

/* pricing */
#pricing {
    background: linear-gradient(180deg, #0b0b0b 0%, #0e0e10 50%, #0a0f25 100%);
    padding-top: 5rem;
    padding-bottom: 2rem;
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.text-glow {
    color: #00bcd4;
    text-shadow: 0 0 20px rgba(0, 188, 212, 0.4);
}

/* === GRID === */
.pricing-grid {
    display: flex;
    flex-wrap: wrap;
    margin-top: 3rem;
    justify-content: center;
    gap: 1.5rem;
}

/* === CARD === */
.price-card {
    flex: 1 1 270px;
    max-width: 280px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 188, 212, 0.2);
    border-radius: 1.25rem;
    padding: 1.8rem;
    box-shadow: 0 0 20px rgba(0, 188, 212, 0.05);
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    position: relative;
}

.price-card:hover {
    transform: translateY(-6px);
    border-color: #00e5ff;
    box-shadow: 0 0 30px rgba(0, 188, 212, 0.3);
}

/* === FEATURED === */
.price-card.featured {
    border: 2px solid #00bcd4;
    background: rgba(0, 188, 212, 0.08);
    transform: scale(1.05);
    box-shadow: 0 0 40px rgba(0, 188, 212, 0.3);
}

.price-card.featured .badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: #00bcd4;
    color: #111;
    font-weight: 600;
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 50px;
}

/* === HEADER === */
.card-header {
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1.2rem;
    padding-bottom: 1rem;
}

.card-header h3 {
    color: #fff;
    font-weight: 600;
    font-size: 1.2rem;
}

.price {
    color: #ccc;
    font-size: 1rem;
    margin: 0.5rem 0;
}

.price span {
    color: #00e5ff;
    font-size: 1.6rem;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(0, 188, 212, 0.5);
}

.desc {
    font-size: 0.85rem;
    color: #aaa;
}

/* === FEATURES === */
.features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    flex-grow: 1;
}

.features li {
    color: #ddd;
    font-size: 0.9rem;
    padding: 0.45rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.features li:first-child {
    border-top: none;
}

.features i {
    color: #00bcd4;
}

/* === BUTTONS === */
.btn-outline-glow {
    border: 1px solid #00bcd4;
    color: #00bcd4;
    transition: 0.3s;
}

.btn-outline-glow:hover {
    background: #00bcd4;
    color: #111;
    box-shadow: 0 0 25px #00bcd4;
}

.btn-brand {
    background: #00bcd4;
    color: #111;
    font-weight: 600;
    transition: 0.3s;
}

.btn-brand:hover {
    background: #00e5ff;
    box-shadow: 0 0 30px rgba(0, 188, 212, 0.4);
}

/* === RESPONSIVE === */
@media (max-width: 992px) {
    .price-card {
        flex: 1 1 45%;
        max-width: 100%;
    }

    .price-card.featured {
        transform: none;
    }
}

.invalid-feedback {
    display: block !important;
    color: #ff5c5c !important;
    font-size: 0.85rem;
    margin-top: 4px;
    font-weight: 500;
}

.is-invalid {
    border-color: #ff5c5c !important;
    box-shadow: 0 0 5px rgba(255, 92, 92, 0.4);
}

@media (max-width: 600px) {
    .price-card {
        flex: 1 1 100%;
    }
}

/* pricing */

.contact-card {
    position: relative;
    overflow: hidden
}

.contact-card:before {
    content: "";
    position: absolute;
    inset: -20%;
    background: radial-gradient(600px 300px at 20% 10%, #43b9b222, transparent 60%), radial-gradient(600px 300px at 80% 0%, #006f7722, transparent 55%)
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: .75rem
}

.contact-item i {
    color: var(--brand);
    font-size: 1.25rem;
    margin-top: .15rem
}

/* FOOTER */
footer {
    background: radial-gradient(circle at 20% 30%, #10162e 0, #070b18 80%);
    padding: 4rem 0 2rem;
    border-top: 1px solid #1e243d;
    color: #a8b3d0;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1rem;
}

.footer-logo .icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--secondary));
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #fff;
}

.footer-col h6 {
    color: #fff;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-col a {
    color: #a8b3d0;
    text-decoration: none;
    display: block;
    margin-bottom: .5rem;
    font-size: .95rem;
}

.footer-col a:hover {
    color: var(--brand)
}

.footer-social a {
    color: #fff;
    font-size: 1.25rem;
    margin-right: .75rem;
    transition: .3s;
}

.footer-social a:hover {
    color: var(--brand)
}

.footer-bottom {
    border-top: 1px solid #1e243d;
    margin-top: 3rem;
    padding-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    color: #a8b3d0;
    font-size: .9rem;
}

.footer-bottom a {
    color: #a8b3d0;
    margin-left: 1rem;
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--brand)
}

/* === Scroll Reveal Animasyonu === */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.show {
    opacity: 1;
    transform: none;
}

/* === Scroll-to-Top Butonu === */
.scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--brand);
    color: #fff;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000;
    box-shadow: 0 10px 24px #0006;
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(-6px);
}

/* === Hero orb hareketi === */
.hero .orb {
    will-change: transform;
    transition: transform 0.4s ease-out;
}


@keyframes fadeInHero {
    to {
        opacity: 1;
    }
}

/* Navbar scroll efekti — sade transparanlık */
.navbar.scrolled {
    background: rgba(11, 16, 32, 0.95);
    transition: background 0.3s ease;
}

/* Buton hover — minik parlama */
.btn:hover {
    filter: brightness(1.1);
    transition: filter 0.25s ease;
}

/* Link hover yumuşak renk geçişi */
a {
    transition: color 0.25s ease;
}

/* Bölümler Arası Boşluk */
section {
    margin-top: 4rem;
    /* her bölümün üstüne boşluk */
    margin-bottom: 4rem;
    /* her bölümün altına boşluk */
}

/* Bazı özel durumlar (örneğin hero ve footer) için hafif düzenleme */
.hero {
    margin-top: 0 !important;
}

/* Offer Modal */
#offerType.form-select {
    background-color: rgba(255, 255, 255, 0.08) !important;
    color: #e9ecf3 !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    transition: all 0.25s ease;
    appearance: none;
}

#offerType.form-select option {
    background-color: #636363 !important;
    color: #e9ecf3 !important;
}

#offerType.form-select:focus {
    border-color: var(--brand) !important;
    box-shadow: 0 0 0 0.2rem rgba(67, 185, 178, 0.25);
}

/* Sadece mobilde (tablet ve altı) yatay scroll'u engelle */
@media (max-width: 768px) {

    html,
    body {
        overflow-x: hidden !important;
        width: 100% !important;
    }

    /* Negatif margin ve taşma hataları için */
    .row {
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    /* Taşmaya sebep olabilecek elemanları sınırlamak */
    * {
        box-sizing: border-box;
        max-width: 100vw !important;
    }

    /* Ekstra güvenlik (Lightbox, AOS vb.) */
    [data-aos],
    .lb-dataContainer,
    .lb-outerContainer {
        max-width: 100% !important;
        overflow-x: hidden !important;
    }
}

footer {
    margin-bottom: 0 !important;
}