/* ===== 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;
}

::selection {
    background: rgba(13, 148, 136, 0.15);
    color: #0f766e;
}

/* ===== NAVBAR ===== */
#navbar {
    color: rgba(255, 255, 255, 0.9);
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    color: #1e293b;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .nav-logo-text {
    color: #1e293b;
}

#navbar.scrolled .menu-line {
    background: #1e293b;
}

/* ===== MOBILE MENU ===== */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.menu-line:last-child {
    width: 40%;
}

#menu-btn.active .menu-line:first-child {
    transform: translateY(5px) rotate(45deg);
}

#menu-btn.active .menu-line:last-child {
    transform: translateY(-5px) rotate(-45deg);
    width: 100%;
}

/* ===== HERO ANIMATIONS ===== */
.hero-subtitle {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.3s;
    opacity: 0;
}

.hero-headline {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.hero-desc {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.7s;
    opacity: 0;
}

.hero-ctas {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.9s;
    opacity: 0;
}

.hero-scroll {
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 1.2s;
    opacity: 0;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== SCROLL REVEAL ===== */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-up {
    transform: translateY(0);
}

.reveal-left {
    transform: translateX(0);
}

.reveal-right {
    transform: translateX(0);
}

/* These are progressive enhancement — content is visible by default */
.reveal-animated .reveal-up {
    opacity: 0;
    transform: translateY(32px);
}

.reveal-animated .reveal-left {
    opacity: 0;
    transform: translateX(-32px);
}

.reveal-animated .reveal-right {
    opacity: 0;
    transform: translateX(32px);
}

.reveal-animated .revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* ===== FORM STYLES ===== */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.08);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.1;
    }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal-animated .reveal-up,
    .reveal-animated .reveal-left,
    .reveal-animated .reveal-right {
        opacity: 1;
        transform: none;
    }
}