/* ========================================
   Hammett Drilling Co. — Custom Styles
   Classic & Elegant · Deep Navy + Warm Gold
   ======================================== */

/* --- Custom Properties --- */
:root {
    --color-navy-900: #0D1B2A;
    --color-navy-800: #1B2A4A;
    --color-gold-500: #C9A84C;
    --color-gold-400: #D4B96A;
    --color-cream-50: #FAF8F5;
    --color-cream-100: #F5F0E8;
    --color-cream-200: #EDE6D8;
}

/* --- Base & Typography --- */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-gold-500);
    color: var(--color-navy-900);
}

/* --- Navigation --- */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(13, 27, 42, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-text {
    color: #FAF8F5;
}

.nav-subtext {
    color: rgba(201, 168, 76, 0.8);
}

.nav-link {
    color: rgba(250, 248, 245, 0.8);
}

.nav-link:hover {
    color: #C9A84C;
}

.nav-logo-light,
.nav-logo-dark {
    display: none;
}

#navbar:not(.scrolled) .nav-logo-light {
    display: block;
}

#navbar.scrolled .nav-logo-dark {
    display: block;
}

#navbar:not(.scrolled) .nav-text {
    color: #FAF8F5;
}

#navbar:not(.scrolled) .nav-subtext {
    color: rgba(201, 168, 76, 0.8);
}

#navbar:not(.scrolled) .nav-link {
    color: rgba(250, 248, 245, 0.8);
}

#navbar:not(.scrolled) .hamburger-line {
    background: #FAF8F5;
}

#navbar.scrolled .hamburger-line {
    background: #FAF8F5;
}

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

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

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

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

/* --- Hamburger Animation --- */
#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    top: 50%;
    transform: rotate(45deg);
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    top: 50%;
    left: 10%;
    width: 60%;
    transform: rotate(-45deg);
}

/* --- Hero Stat Cards --- */
.stat-card {
    animation: floatCard 6s ease-in-out infinite;
}

.stat-card:nth-child(1) {
    animation-delay: 0s;
}

.stat-card:nth-child(2) {
    animation-delay: -2s;
}

.stat-card:nth-child(3) {
    animation-delay: -4s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* --- Service Cards --- */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold-500), var(--color-gold-400));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover::after {
    transform: scaleX(1);
}

/* --- 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-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
    .reveal-delay-6 { transition-delay: 0.6s; }
}

/* --- Form Styles --- */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

select {
    background-image: url('data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 width=%2212%22 height=%2212%22 viewBox=%220 0 24 24%22 fill=%22none%22 stroke=%22%231B2A4A%22 stroke-width=%222.5%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22%3E%3Cpolyline points=%226 9 12 15 18 9%22%3E%3C/polyline%3E%3C/svg%3E');
}

/* --- Gold CTA Banner Pattern --- */
.bg-gold-500::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(27, 42, 74, 0.05) 0%, transparent 50%, rgba(27, 42, 74, 0.08) 100%);
    pointer-events: none;
}

/* --- Divider Lines --- */
.gold-divider {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gold-500), var(--color-gold-400));
}

/* --- Button Focus States --- */
button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-gold-400);
    outline-offset: 2px;
}

/* --- Responsive Adjustments --- */
@media (max-width: 767px) {
    .stat-card {
        max-width: 100% !important;
    }
}

@media (min-width: 1024px) {
    .service-card:hover {
        transform: translateY(-4px);
    }
}