/* ==========================================================================
   AUREON PROJECT MANAGEMENT - HUMAN ARCHITECTURAL DESIGN SYSTEM
   ========================================================================== */

:root {
    --bg-page: #fafafa;
    --bg-surface: #ffffff;
    --bg-subtle: #f4f4f5;
    --bg-dark: #0f172a;
    --bg-dark-surface: #1e293b;
    
    --slate-primary: #0f172a;
    --slate-dark: #020617;
    --slate-light: #334155;
    --slate-muted: #64748b;
    
    --blue-accent: #1d4ed8;
    --blue-hover: #1e40af;
    --blue-subtle: #eff6ff;
    --blue-border: #bfdbfe;
    
    --amber-accent: #b45309;
    --amber-subtle: #fffbeb;
    --amber-border: #fde68a;
    
    --text-heading: #0f172a;
    --text-body: #334155;
    --text-muted: #64748b;
    --text-white: #ffffff;
    
    --border-subtle: #e4e4e7;
    --border-card: #d4d4d8;
    --border-strong: #a1a1aa;
    
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-card: 0 4px 12px -2px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
    --shadow-hover: 0 12px 28px -6px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    color-scheme: light;
}

body {
    background-color: var(--bg-page);
    color: var(--text-body);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-size: 15px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6, .font-display {
    font-family: var(--font-display);
    color: var(--text-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.text-slate { color: var(--slate-primary); }
.text-blue { color: var(--blue-accent); }
.text-amber { color: var(--amber-accent); }
.text-heading { color: var(--text-heading); }
.text-muted { color: var(--text-muted); }

/* Architectural Section Index */
.section-index {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--blue-accent);
    margin-bottom: 0.75rem;
}

.section-index::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 2px;
    background-color: var(--blue-accent);
}

/* Layout Containers */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }

/* Sticky Light Header */
.glass-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition);
}

/* Brand Logo Mark */
.logo-mark {
    width: 36px;
    height: 36px;
    background: var(--slate-primary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.05em;
}

/* Card Styling - Refined Architectural Cards */
.card-luxury {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-card);
}

.card-luxury:hover {
    border-color: var(--border-card);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    border-color: var(--blue-accent);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: var(--slate-primary);
    color: #ffffff;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    border: 1px solid var(--slate-primary);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--blue-accent);
    border-color: var(--blue-accent);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.2);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: #ffffff;
    color: var(--slate-primary);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    border: 1px solid var(--border-card);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
    border-color: var(--slate-primary);
    color: var(--slate-primary);
    background: var(--bg-subtle);
    transform: translateY(-1px);
}

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: var(--blue-accent);
    color: #ffffff;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    border: 1px solid var(--blue-accent);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(29, 78, 216, 0.2);
}

.btn-accent:hover {
    background: var(--blue-hover);
    border-color: var(--blue-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-green, .btn-olive {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: #4d6f1a;
    color: #ffffff;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.85rem 1.85rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    border: 1px solid #4d6f1a;
    cursor: pointer;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(77, 111, 26, 0.25);
}

.btn-green:hover, .btn-olive:hover {
    background: #3f5c15;
    border-color: #3f5c15;
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(77, 111, 26, 0.35);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.825rem;
}

/* Badges & Tags */
.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-subtle);
    border: 1px solid var(--border-subtle);
    color: var(--slate-primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.02em;
}

.badge-blue {
    background: var(--blue-subtle);
    border-color: var(--blue-border);
    color: var(--blue-accent);
}

.badge-amber {
    background: var(--amber-subtle);
    border-color: var(--amber-border);
    color: var(--amber-accent);
}

/* Filter Tabs */
.filter-tab {
    background: #ffffff;
    color: var(--slate-light);
    border: 1px solid var(--border-subtle);
    padding: 0.5rem 1.15rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab:hover {
    border-color: var(--slate-primary);
    color: var(--slate-primary);
}

.filter-tab.active {
    background: var(--slate-primary);
    color: #ffffff;
    border-color: var(--slate-primary);
}

/* Hero Section */
.hero-wrapper {
    position: relative;
    background-size: cover;
    background-position: center;
    min-height: 72vh;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.78) 60%, rgba(15, 23, 42, 0.88) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #ffffff;
}

/* Metrics & Stats Bar */
.stat-box {
    text-align: left;
    padding: 1.5rem;
    border-right: 1px solid var(--border-subtle);
}

.stat-box:last-child {
    border-right: none;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--slate-primary);
    line-height: 1;
    letter-spacing: -0.03em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 0.4rem;
    font-weight: 600;
}

/* Modal Overlay */
.modal-backdrop-custom {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(6px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    animation: fadeIn 0.2s ease-out;
}

.modal-content-custom {
    background: #ffffff;
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 860px;
    max-height: 88vh;
    overflow-y: auto;
    padding: 2.25rem;
    position: relative;
    box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.2);
    color: var(--text-body);
}

.modal-close-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: var(--bg-subtle);
    color: var(--slate-primary);
    border: 1px solid var(--border-subtle);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close-btn:hover {
    background: var(--slate-primary);
    color: #ffffff;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--slate-primary);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--slate-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--blue-accent);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

/* Keyframes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

@media (max-width: 992px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
    .stat-box { border-right: none; border-bottom: 1px solid var(--border-subtle); }
}

@media (max-width: 640px) {
    .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
}

/* Service Overlay Card (Matching Screenshot 4 & 5) */
.service-card-overlay {
    position: relative;
    height: 220px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: flex-end;
}

.service-card-overlay:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

.service-card-overlay .bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card-overlay:hover .bg-img {
    transform: scale(1.06);
}

.service-card-overlay .overlay-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.85) 100%);
    transition: var(--transition);
}

.service-card-overlay:hover .overlay-gradient {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.92) 100%);
}

.service-card-overlay .card-text-wrapper {
    position: relative;
    z-index: 2;
    padding: 1.25rem 1.5rem;
    width: 100%;
}

.service-card-overlay .card-title-text {
    color: #ffffff;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

/* Green Divider Line */
.green-divider {
    width: 100%;
    max-width: 900px;
    height: 4px;
    background: #4d6f1a;
    margin: 1.5rem auto 0 auto;
}