/**
 * Altınova — gezinme deneyimi ve mikro etkileşimler
 */
.alt-scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 999990;
    pointer-events: none;
    background: transparent;
}

.alt-scroll-progress__bar {
    display: block;
    height: 100%;
    width: 100%;
    transform-origin: left center;
    transform: scaleX(0);
    background: linear-gradient(90deg, var(--alt-gold-deep, #9a7b1a) 0%, var(--alt-gold, #c9a227) 45%, var(--alt-gold-light, #e8c547) 100%);
    box-shadow: 0 0 12px rgba(201, 162, 39, 0.45);
    will-change: transform;
}

.alt-back-top {
    position: fixed;
    right: clamp(16px, 2vw, 24px);
    bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    z-index: 999970;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(145deg, var(--alt-ink, #0a192f), var(--alt-ink-soft, #141f33));
    box-shadow: 0 8px 28px rgba(10, 25, 47, 0.28);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) scale(0.92);
    transition: opacity 0.35s var(--alt-ease, ease), transform 0.35s var(--alt-ease, ease), visibility 0.35s, background 0.25s, box-shadow 0.25s;
}

body.page-landing .alt-back-top {
    bottom: calc(96px + env(safe-area-inset-bottom, 0px));
}

.alt-back-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.alt-back-top:hover,
.alt-back-top:focus-visible {
    background: linear-gradient(145deg, var(--alt-blue, #0b50a1), var(--alt-blue-deep, #083d7a));
    box-shadow: 0 12px 32px rgba(11, 80, 161, 0.35);
    outline: none;
}

.alt-back-top i {
    font-size: 1rem;
}

/* Bölüm giriş animasyonu */
.alt-section-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s var(--alt-ease, cubic-bezier(0.22, 1, 0.36, 1)),
                transform 0.7s var(--alt-ease, cubic-bezier(0.22, 1, 0.36, 1));
}

.alt-section-reveal.alt-is-visible {
    opacity: 1;
    transform: translateY(0);
}

.lp-trust-strip.alt-section-reveal,
.lp-hero.alt-section-reveal,
.lp-trust-strip .lp-reveal {
    opacity: 1;
    transform: none;
}

/* Feature kartları — premium glow */
.features-wrapper {
    position: relative;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%) !important;
}

.features-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 20% 30%, rgba(11, 80, 161, 0.04) 0%, transparent 45%),
                      radial-gradient(circle at 80% 70%, rgba(201, 162, 39, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.feature-card {
    border-radius: 12px !important;
    backdrop-filter: blur(4px);
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, rgba(11, 80, 161, 0.25) 50%, rgba(201, 162, 39, 0.3) 60%, transparent 70%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.45s var(--alt-ease, ease);
    pointer-events: none;
}

.feature-card:hover::after {
    opacity: 1;
}

/* Proje kartları — zoom & derinlik */
.projects-premium-sec .project-card-premium,
.proj-portfolio-page .project-card-premium {
    transition: transform 0.45s var(--alt-ease, ease), box-shadow 0.45s var(--alt-ease, ease), border-color 0.35s;
}

.projects-premium-sec .project-card-premium:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 48px rgba(10, 25, 47, 0.14);
    border-color: rgba(11, 80, 161, 0.2);
}

.projects-premium-sec .project-card-premium__media {
    position: relative;
    overflow: hidden;
}

.projects-premium-sec .project-card-premium__media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 25, 47, 0.55) 100%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.projects-premium-sec .project-card-premium:hover .project-card-premium__media::after {
    opacity: 1;
}

.projects-premium-sec .project-card-premium__media img {
    transition: transform 0.65s var(--alt-ease, ease);
}

.projects-premium-sec .project-card-premium:hover .project-card-premium__media img {
    transform: scale(1.07);
}

/* Model kartları — premium parıltı */
.model-card.premium {
    animation: altPremiumPulse 4s ease-in-out infinite;
}

@keyframes altPremiumPulse {
    0%, 100% { box-shadow: 0 15px 40px rgba(10, 25, 47, 0.2); }
    50% { box-shadow: 0 20px 50px rgba(212, 175, 55, 0.22); }
}

.model-card {
    transition: transform 0.4s var(--alt-ease, ease), box-shadow 0.4s var(--alt-ease, ease), border-color 0.35s !important;
}

.model-card:hover {
    transform: translateY(-12px) !important;
}

/* Şehir kartları */
.city-card {
    cursor: default;
    transition: transform 0.4s var(--alt-ease, ease), background 0.35s, border-color 0.35s, box-shadow 0.35s !important;
}

.city-card:hover {
    box-shadow: 0 18px 36px rgba(10, 25, 47, 0.18) !important;
}

/* Metrik kartları */
.st-metric-card,
.lp-scale-card,
.lp-benefit-card {
    transition: transform 0.35s var(--alt-ease, ease), border-color 0.3s, background 0.3s, box-shadow 0.35s;
}

.st-metric-card:hover,
.lp-scale-card:hover {
    transform: translateY(-4px);
}

.lp-benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--lp-shadow-lg, 0 32px 80px rgba(12, 18, 34, 0.14));
}

/* Sibling & FAQ */
.lp-sibling-card {
    transition: transform 0.35s var(--alt-ease, ease), border-color 0.3s, box-shadow 0.35s, background 0.3s;
}

.lp-sibling-card:hover {
    transform: translateY(-5px);
}

.lp-faq-item {
    transition: border-color 0.25s, box-shadow 0.25s;
}

.lp-faq-item[open] {
    box-shadow: 0 8px 24px rgba(12, 18, 34, 0.06);
    border-color: rgba(201, 162, 39, 0.35);
}

.lp-faq-item summary {
    transition: color 0.2s;
}

.lp-faq-item[open] summary {
    color: var(--lp-ink, #0c1222);
}

/* Hizmet kutuları */
.srv-box {
    transition: transform 0.4s var(--alt-ease, ease), box-shadow 0.4s, border-color 0.3s !important;
}

.srv-box:hover {
    transform: translateY(-12px) !important;
}

/* İstatistik bölümü */
.premium-stat-card {
    transition: transform 0.4s var(--alt-ease, ease), box-shadow 0.4s !important;
}

/* Sanayi taahhüt — sayaç vurgusu */
.st-num[data-lp-count],
.lp-scale-num[data-lp-count] {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* Hero scroll ipucu — nabız animasyonu */
.lp-hero-scroll__line {
    animation: altScrollPulse 2.2s ease-in-out infinite;
}

@keyframes altScrollPulse {
    0%, 100% { transform: scaleY(1); opacity: 0.55; }
    50% { transform: scaleY(1.2); opacity: 1; }
}

.lp-hero-scroll:hover .lp-hero-scroll__label {
    color: var(--lp-gold-bright, #e8c547);
}

/* CTA blok — derinlik */
.lp-cta-block {
    position: relative;
    overflow: hidden;
}

.lp-cta-block::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -15%;
    width: 50%;
    height: 160%;
    background: radial-gradient(circle, rgba(201, 162, 39, 0.08) 0%, transparent 65%);
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .alt-section-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .alt-back-top {
        transition: opacity 0.2s, visibility 0.2s;
    }

    .model-card.premium {
        animation: none;
    }

    .lp-hero-scroll__line {
        animation: none;
    }

    .projects-premium-sec .project-card-premium__media img,
    .feature-card,
    .model-card,
    .city-card,
    .srv-box {
        transition: none !important;
    }
}