/* ============================================
   DAHLIA AT TRUST CO SALON — STYLESHEET
   Charcoal + Coral · Confident Corporate
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --color-charcoal-900: #1a1a2e;
    --color-charcoal-800: #2d2d44;
    --color-charcoal-700: #3d3d5c;
    --color-charcoal-600: #4a4a6a;
    --color-charcoal-500: #6b6b8a;
    --color-charcoal-400: #8888a4;
    --color-charcoal-300: #b0b0c4;
    --color-charcoal-200: #d4d4e2;
    --color-charcoal-100: #ececf4;
    --color-charcoal-50: #f5f5fa;
    
    --color-coral-600: #a84428;
    --color-coral-500: #C75B39;
    --color-coral-400: #d4704f;
    --color-coral-300: #e09075;
    --color-coral-200: #eab89e;
    --color-coral-100: #f5d8cc;
    --color-coral-50: #fdf0ec;
    
    --color-white: #ffffff;
    --color-black: #0a0a0a;
    --color-success: #1a3a2d;
    --color-success-light: #e8f5e9;
    
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px rgba(26, 26, 46, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 26, 46, 0.08);
    --shadow-lg: 0 8px 30px rgba(26, 26, 46, 0.12);
    --shadow-xl: 0 16px 50px rgba(26, 26, 46, 0.16);
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-charcoal-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* --- Skip Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--color-coral-500);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    z-index: 10000;
    font-weight: 600;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-md);
}

/* --- Preloader --- */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-charcoal-900);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.preloader-bar {
    width: 120px;
    height: 2px;
    background: var(--color-charcoal-700);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.preloader-bar::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--color-coral-500);
    border-radius: var(--radius-full);
    animation: preloaderSlide 1s ease-in-out infinite;
}

@keyframes preloaderSlide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(350%); }
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--color-charcoal-100);
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* --- Logo --- */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    flex-shrink: 0;
}

.logo--footer {
    text-decoration: none;
}

.logo-icon {
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-charcoal-900);
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--color-charcoal-500);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* --- Navigation --- */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: 1001;
}

.nav-toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-charcoal-800);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-link {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-charcoal-600);
    border-radius: var(--radius-md);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-charcoal-900);
    background: var(--color-charcoal-50);
}

.nav-cta {
    margin-left: var(--space-md);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
    text-decoration: none;
}

.btn-coral {
    background: var(--color-coral-500);
    color: var(--color-white);
    border: 2px solid var(--color-coral-500);
}

.btn-coral:hover {
    background: var(--color-coral-600);
    border-color: var(--color-coral-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
    background: var(--color-white);
    color: var(--color-charcoal-900);
    border-color: var(--color-white);
}

.btn-outline-dark {
    background: transparent;
    color: var(--color-charcoal-800);
    border: 2px solid var(--color-charcoal-200);
}

.btn-outline-dark:hover {
    background: var(--color-charcoal-800);
    color: var(--color-white);
    border-color: var(--color-charcoal-800);
}

.btn-secondary {
    background: var(--color-charcoal-100);
    color: var(--color-charcoal-800);
    border: 2px solid var(--color-charcoal-200);
}

.btn-secondary:hover {
    background: var(--color-charcoal-200);
    border-color: var(--color-charcoal-300);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* --- Section Shared --- */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-coral-500);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-charcoal-900);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.section-title--light {
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--color-charcoal-500);
    line-height: 1.7;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-charcoal-900);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 26, 46, 0.88) 0%,
        rgba(26, 26, 46, 0.75) 50%,
        rgba(26, 26, 46, 0.60) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 0.8fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(199, 91, 57, 0.15);
    border: 1px solid rgba(199, 91, 57, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-coral-300);
    margin-bottom: var(--space-xl);
    letter-spacing: 0.04em;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-coral-400);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-xl);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-charcoal-300);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: