/* ===== UNREAL CRAFT 3D PRINTING THEME ===== */
:root {
    /* Unreal Craft Brand Colors */
    --primary: #00d4ff;
    --primary-dark: #0099cc;
    --secondary: #ff6b35;
    --accent: #39ff14;
    --dark: #0d1117;
    
    /* Background Colors */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --card-bg: rgba(33, 38, 45, 0.9);
    --card-border: rgba(0, 212, 255, 0.2);
    --input-bg: rgba(0, 0, 0, 0.4);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b9bbbe;
    --text-muted: #72767d;
    
    /* Additional Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 4rem 0;
    --card-padding: 2rem;
    --border-radius: 15px;
    --border-radius-sm: 8px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 3D Printing Theme Effects */
    --neon-glow: 0 0 20px rgba(0, 212, 255, 0.5);
    --neon-text-glow: 0 0 10px rgba(0, 212, 255, 0.8);
    --accent-glow: 0 0 15px rgba(255, 107, 53, 0.6);
    --success-glow: 0 0 15px rgba(57, 255, 20, 0.6);
}

/* ===== RESET & BASE STYLES ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: 
        var(--bg-primary)
        radial-gradient(circle at 25% 25%, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 107, 53, 0.02) 0%, transparent 50%),
        linear-gradient(0deg, transparent 24%, rgba(0, 212, 255, 0.05) 25%, rgba(0, 212, 255, 0.05) 26%, transparent 27%, transparent 74%, rgba(0, 212, 255, 0.05) 75%, rgba(0, 212, 255, 0.05) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(0, 212, 255, 0.05) 25%, rgba(0, 212, 255, 0.05) 26%, transparent 27%, transparent 74%, rgba(0, 212, 255, 0.05) 75%, rgba(0, 212, 255, 0.05) 76%, transparent 77%, transparent);
    background-size: 100% 100%, 100% 100%, 50px 50px, 50px 50px;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    direction: rtl;
}

/* ===== RTL SUPPORT ===== */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .nav-menu {
    margin-right: auto;
    margin-left: 0;
}

[dir="rtl"] .hero-buttons {
    justify-content: flex-start;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center {
    text-align: center;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: var(--neon-text-glow);
    animation: textGlow 3s ease-in-out infinite alternate;
}

@keyframes textGlow {
    0% {
        filter: brightness(1) drop-shadow(0 0 5px rgba(0, 212, 255, 0.5));
    }
    100% {
        filter: brightness(1.2) drop-shadow(0 0 15px rgba(0, 212, 255, 0.8));
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--neon-glow);
    border: 1px solid rgba(0, 212, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-2px);
    box-shadow: var(--neon-glow), 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
    z-index: -1;
}

.btn-secondary:hover::before {
    width: 100%;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: white;
    box-shadow: var(--neon-glow);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1.25rem 2rem;
    font-size: 1.125rem;
}

/* ===== CALCULATOR-SPECIFIC BUTTONS ===== */
.calc-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    font-family: inherit;
}

.calc-btn-primary {
    background-color: var(--primary);
    color: white;
}

.calc-btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.calc-btn-secondary {
    background-color: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.calc-btn-secondary:hover {
    background-color: var(--card-bg);
    border-color: var(--primary);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(32, 34, 37, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-logo svg {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary);
    border-radius: 1px;
}

.nav-link.admin-link {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    transition: all var(--transition-normal);
    margin-right: 1rem;
}

.nav-link.admin-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(114, 137, 218, 0.3);
}

.nav-link.admin-link::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 80%, rgba(57, 255, 20, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-model {
    animation: float 6s ease-in-out infinite;
}

.model-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.model-preview svg {
    color: var(--primary);
    margin-bottom: 1rem;
}

.model-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.stat {
    text-align: center;
    padding: 1rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.stat:hover::before {
    transform: scaleX(1);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--neon-glow);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: var(--neon-text-glow);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== SECTIONS ===== */
.page-header {
    padding: 8rem 0 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    margin-bottom: 1.5rem;
    color: white;
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* ===== CALCULATOR MAIN STYLES ===== */
.calculator-main {
    padding: 2rem 0 4rem;
    background-color: var(--bg-primary);
}

.print-type-selection {
    margin-bottom: 3rem;
    text-align: center;
}

.print-type-selection h2 {
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.type-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.type-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background-color: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: right;
    backdrop-filter: blur(10px);
}

.type-btn:hover,
.type-btn.active {
    border-color: var(--primary);
    background-color: rgba(114, 137, 218, 0.1);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.type-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    color: white;
    flex-shrink: 0;
}

.type-info h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.type-info p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.type-price {
    color: var(--secondary);
    font-weight: 600;
    font-size: 1.125rem;
}

/* ===== CALCULATOR INTERFACE ===== */
.calculator-interface {
    max-width: 1000px;
    margin: 0 auto;
}

.calc-section {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.section-header h3 {
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ===== FILE UPLOAD ===== */
.file-upload-area {
    border: 3px dashed var(--card-border);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background-color: var(--input-bg);
}

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary);
    background-color: rgba(114, 137, 218, 0.05);
}

.upload-content svg {
    color: var(--primary);
    margin-bottom: 1rem;
}

.upload-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.file-info {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.file-status {
    margin-top: 1rem;
}

.file-info-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
}

.file-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.file-name {
    color: var(--text-primary);
    font-weight: 500;
}

.file-size {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.remove-file {
    background: none;
    border: none;
    color: var(--error);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.remove-file:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

/* ===== 3D MODEL VIEWER ===== */
.model-viewer-container {
    position: relative;
    margin-bottom: 2rem;
}

.model-viewer {
    width: 100%;
    height: 400px;
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-secondary);
    overflow: hidden;
}

.model-controls {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    justify-content: center;
}

.control-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.control-btn:hover {
    background-color: var(--card-bg);
    border-color: var(--primary);
}

/* ===== MODEL INFO GRID ===== */
.model-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-card {
    padding: 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.info-card label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.dimensions-display {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.125rem;
}

.volume-display {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.125rem;
}

/* ===== SCALE CONTROLS ===== */
.scale-controls {
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
}

.scale-controls h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.scale-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    align-items: end;
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.input-group input {
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.apply-scale-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--secondary);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: background-color var(--transition-fast);
}

.apply-scale-btn:hover {
    background-color: #0ca372;
}

/* ===== PRINT SETTINGS ===== */
.settings-container {
    margin-top: 1rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.setting-group select,
.setting-group input[type="text"],
.setting-group input[type="tel"],
.setting-group input[type="email"],
.setting-group input[type="number"] {
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
}

.setting-group select:focus,
.setting-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.setting-group input[type="checkbox"] {
    margin-left: 0.5rem;
    accent-color: var(--primary);
}

/* ===== SLIDER CONTROLS ===== */
.slider-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.slider-container input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--input-bg);
    outline: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.slider-labels span:nth-child(2) {
    color: var(--primary);
    font-weight: 600;
}

/* ===== CUSTOMER FORM ===== */
.customer-form {
    margin-top: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* ===== RESULTS SECTION ===== */
.results-container {
    margin-top: 1rem;
}

.calculation-breakdown {
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    padding: 2rem;
    margin-bottom: 2rem;
}

.calculation-breakdown h4 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--card-border);
}

.breakdown-item:last-child {
    border-bottom: none;
}

.breakdown-item span:first-child {
    color: var(--text-secondary);
    font-weight: 500;
}

.breakdown-item span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

.breakdown-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-top: 2px solid var(--primary);
    margin-top: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.breakdown-total span:first-child {
    color: var(--text-primary);
}

.breakdown-total span:last-child {
    color: var(--primary);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ===== CTA SECTION ===== */
.cta {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 10s ease-in-out infinite;
}

.cta-secondary {
    background: var(--bg-secondary);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* ===== PROJECTS PAGE ===== */
.filter-section {
    padding: 2rem 0;
    background-color: var(--bg-secondary);
}

.filter-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.projects-gallery {
    padding: var(--section-padding);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-content {
    padding: 1.5rem;
}

.project-meta {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.material-badge,
.category-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.material-badge {
    background-color: var(--primary);
    color: white;
}

.category-badge {
    background-color: var(--input-bg);
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
}

.project-title {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.gallery-loading,
.gallery-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--input-bg);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.gallery-empty svg {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

/* ===== MODAL ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal.show {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--card-border);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
}

.modal-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--card-border);
    text-align: center;
}

.modal-header h3 {
    color: var(--text-primary);
    margin: 0;
}

.modal-body {
    padding: 2rem;
    text-align: center;
}

.success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--success), #0ca372);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    color: white;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.order-summary {
    background-color: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem;
    text-align: right;
    margin-bottom: 1rem;
}

.order-summary h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.order-summary p {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.modal-footer {
    padding: 1rem 2rem 2rem;
    text-align: center;
}

.modal-close {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    z-index: 2;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--input-bg);
    color: var(--text-primary);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--card-border);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-logo svg {
    color: var(--primary);
}

.footer-section p {
    color: var(--text-secondary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
    text-align: center;
    color: var(--text-muted);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .type-buttons {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--card-bg);
        border-top: 1px solid var(--card-border);
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu.show {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .page-header {
        padding: 6rem 0 3rem;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-controls {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-section {
        padding: 1.5rem;
    }
    
    .settings-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .scale-inputs {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .modal {
        padding: 1rem;
    }
    
    .modal-content {
        max-height: 95vh;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .type-btn {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .model-viewer {
        height: 300px;
    }
    
    .model-controls {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .control-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .navbar,
    .footer,
    .cta,
    .btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero,
    .page-header {
        background: none !important;
        padding: 2rem 0 !important;
    }
}