/* ========================================
   Sonoran Spine — Custom Styles
   Classic & Elegant · Deep Navy + Warm Gold
======================================== */

/* ---------- Base ---------- */
:root {
    --navy: #1a2d4a;
    --navy-dark: #0d1b2e;
    --gold: #c9a84c;
    --gold-light: #d4b96a;
    --stone-50: #fafaf9;
    --stone-100: #f5f5f4;
    --stone-200: #e7e5e4;
    --stone-500: #78716c;
    --stone-600: #57534e;
    --stone-700: #44403c;
    --warm-gray: #7a6f55;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 300;
    color: var(--navy);
    background-color: var(--stone-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.font-serif {
    font-family: 'Cormorant Garamond', Georgia, serif;
}

/* ---------- Navbar ---------- */
#navbar {
    background: transparent;
    transition: background 0.5s ease, box-shadow 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
    background: rgba(250, 250, 249, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(26, 45, 74, 0.08);
}

/* ---------- Hero ---------- */
#hero {
    position: relative;
}

/* ---------- 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(--gold), var(--gold-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

/* ---------- Approach Steps ---------- */
.approach-step {
    position: relative;
}

.approach-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -1.5rem;
    width: 3rem;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), transparent);
    display: none;
}

@media (min-width: 768px) {
    .approach-step:not(:last-child)::after {
        display: block;
    }
}

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

.menu-line {
    transition: all 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle.active .menu-line:nth-child(3) {
    width: 6px;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ---------- Scroll Reveal (progressive enhancement) ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .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; }
}

/* ---------- Form Inputs ---------- */
input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
}

/* ---------- Selection ---------- */
::selection {
    background: var(--gold);
    color: var(--navy);
}

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

::-webkit-scrollbar-track {
    background: var(--stone-100);
}

::-webkit-scrollbar-thumb {
    background: var(--navy);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gold);
}

/* ---------- Print ---------- */
@media print {
    #navbar, #menu-toggle, .animate-bounce {
        display: none !important;
    }
    body {
        color: #000;
        background: #fff;
    }
}