/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #F0FBF7;
}
::-webkit-scrollbar-thumb {
    background: #8DD8BF;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #5FC0A2;
}

/* ── Badge Labels ── */
.badge-label {
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.badge-label-light {
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* ── Input Fields ── */
.input-field {
    transition: all 0.3s ease;
}

.input-field:focus {
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(95, 192, 162, 0.15);
}

.input-field option {
    background: #ffffff;
    color: #0A1F3F;
}

/* ── Submit Button ── */
.btn-submit {
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.btn-submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-submit:hover::after {
    opacity: 1;
}

/* ── Hero Section ── */
.hero-bg {
    will-change: transform;
}

.hero-img {
    will-change: transform;
}

/* Hero entrance animations */
.hero-badge {
    animation: heroFadeUp 0.8s ease-out 0.2s both;
}

.hero-headline {
    animation: heroFadeUp 0.8s ease-out 0.4s both;
}

.hero-subtitle {
    animation: heroFadeUp 0.8s ease-out 0.6s both;
}

.hero-ctas {
    animation: heroFadeUp 0.8s ease-out 0.8s both;
}

.hero-scroll {
    animation: heroFadeUp 0.8s ease-out 1.2s both;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Particles ── */
.particle {
    animation: float linear infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-20px) translateX(10px);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-10px) translateX(-5px);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-30px) translateX(15px);
        opacity: 0.7;
    }
}

/* ── Scroll Reveal ── */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Default state for reduced motion - always visible */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger children */
.scroll-reveal:nth-child(1) { transition-delay: 0s; }
.scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
.scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
.scroll-reveal:nth-child(4) { transition-delay: 0.3s; }

/* ── Menu Cards ── */
.menu-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.menu-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px -20px rgba(10, 31, 63, 0.15);
}

.menu-card-img {
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Experience Cards ── */
.experience-card {
    transition: transform 0.3s ease;
}

.experience-card:hover {
    transform: translateY(-4px);
}

/* ── Mobile Menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu .mobile-nav-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-nav-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-nav-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-nav-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-nav-link:nth-child(4) { transition-delay: 0.25s; }

/* ── Navbar transition ── */
#navbar.scrolled {
    background: rgba(10, 31, 63, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

/* ── Mobile hamburger animation ── */
.mobile-menu-btn.active .bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.mobile-menu-btn.active .bar:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active .bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .hero-headline {
        font-size: 2.75rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 640px) {
    .hero-headline {
        font-size: 2.25rem;
    }
}