/* ===== Base & Typography ===== */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: rgba(15, 76, 92, 0.15);
    color: #0F4C5C;
}

/* ===== Scroll Reveal (Progressive Enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
    .reveal:nth-child(4) { transition-delay: 0.3s; }
}

/* ===== Hero Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    animation: fadeInUp 0.8s 0.2s both;
}

.hero-title {
    animation: fadeInUp 0.8s 0.4s both;
}

.hero-desc {
    animation: fadeInUp 0.8s 0.6s both;
}

.hero-cta {
    animation: fadeInUp 0.8s 0.8s both;
}

/* ===== Navbar ===== */
.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

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

.navbar-scrolled .nav-link {
    color: #475569 !important;
}

.navbar-scrolled .nav-link:hover {
    color: #0F4C5C !important;
}

.navbar-scrolled .nav-btn .nav-line-1,
.navbar-scrolled .nav-btn .nav-line-2,
.navbar-scrolled .nav-btn .nav-line-3 {
    background-color: #1e293b;
}

.navbar-scrolled .nav-link::after {
    background-color: #C8A96C !important;
}

/* ===== Nav Links ===== */
.nav-link {
    position: relative;
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: rgba(200, 169, 108, 0.6);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link:hover::after {
    width: 100%;
}

/* ===== Mobile Menu ===== */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

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

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu-open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ===== Mobile Menu Button ===== */
.menu-open .nav-line-1 {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-open .nav-line-2 {
    opacity: 0;
}

.menu-open .nav-line-3 {
    width: 24px;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ===== Service Cards ===== */
.service-card {
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.4s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(15, 76, 92, 0.1);
}

/* ===== Buttons ===== */
button, a[href^="tel"], a[href^="mailto"] {
    cursor: pointer;
}

/* ===== Form Focus ===== */
input:focus, select:focus, textarea:focus {
    outline: none;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f8fafc;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

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

    .hero-desc {
        font-size: 1.05rem;
    }

    section {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
}

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