/**
 * Pro Transportas - Main Styles
 * Colors: Black, Red, White
 */

:root {
    --color-black: #000000;
    --color-dark: #0a0a0a;
    --color-dark-alt: #111111;
    --color-gray: #1a1a1a;
    --color-gray-light: #2a2a2a;
    --color-gray-lighter: #333333;
    --color-red: #E53935;
    --color-red-dark: #C62828;
    --color-red-light: #EF5350;
    --color-white: #FFFFFF;
    --color-white-muted: #B0B0B0;
    --color-white-dim: #888888;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--color-red-light);
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-sm {
    max-width: 600px;
}

.container-lg {
    max-width: 1400px;
}

/* Header */
.header {
    background-color: var(--color-dark);
    border-bottom: 1px solid var(--color-gray);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    height: 50px;
    width: auto;
}

.logo img {
    height: 100%;
    width: auto;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: var(--color-white);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav a:hover {
    color: var(--color-red);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-red);
    transition: var(--transition);
}

.nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-black) 100%);
}

.hero h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--color-red);
}

.hero p {
    font-size: var(--font-size-lg);
    color: var(--color-white-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--color-gray);
    color: var(--color-white);
    border: 1px solid var(--color-gray-light);
}

.btn-secondary:hover {
    background-color: var(--color-gray-light);
    color: var(--color-white);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-red);
}

.btn-outline:hover {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 18px 40px;
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Cards */
.card {
    background-color: var(--color-dark);
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--color-gray-light);
}

.card-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-gray);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-white);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-white-muted);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: var(--font-size-base);
    font-family: inherit;
    background-color: var(--color-gray);
    border: 1px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    color: var(--color-white);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-red);
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.2);
}

.form-control::placeholder {
    color: var(--color-white-dim);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23888888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Radio & Checkbox Groups */
.radio-group,
.checkbox-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.radio-option,
.checkbox-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background-color: var(--color-gray);
    border: 1px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    min-width: 120px;
}

.radio-option:hover,
.checkbox-option:hover {
    border-color: var(--color-red);
}

.radio-option.active,
.checkbox-option.active {
    border-color: var(--color-red);
    background-color: rgba(229, 57, 53, 0.1);
}

.radio-option input,
.checkbox-option input {
    accent-color: var(--color-red);
    width: 18px;
    height: 18px;
}

/* Calculator Section */
.calculator-section {
    padding: 80px 0;
    background-color: var(--color-black);
}

.calculator-card {
    background-color: var(--color-dark);
    border: 1px solid var(--color-gray);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.calculator-header {
    background-color: var(--color-gray);
    padding: 25px 30px;
    border-bottom: 1px solid var(--color-gray-light);
}

.calculator-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: 5px;
}

.calculator-header p {
    color: var(--color-white-muted);
    font-size: var(--font-size-sm);
}

.calculator-body {
    padding: 30px;
}

.calculator-footer {
    padding: 25px 30px;
    background-color: var(--color-gray);
    border-top: 1px solid var(--color-gray-light);
}

/* Results */
.results {
    display: none;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--color-gray);
}

.results.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-section {
    margin-bottom: 25px;
}

.result-section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-red);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-gray);
}

.result-row:last-child {
    border-bottom: none;
}

.result-label {
    color: var(--color-white-muted);
}

.result-value {
    font-weight: 600;
    font-family: 'SF Mono', Monaco, monospace;
}

.result-total {
    background-color: var(--color-gray);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 20px;
}

.result-total .result-row {
    border-bottom: none;
    padding: 5px 0;
}

.result-total .final-price {
    font-size: var(--font-size-2xl);
    color: var(--color-red);
}

/* Info Section */
.info-section {
    padding: 80px 0;
    background-color: var(--color-dark);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 900px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
}

.info-card {
    background-color: var(--color-gray);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.info-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 10px;
}

.info-card p {
    color: var(--color-white-muted);
    font-size: var(--font-size-sm);
}

/* Footer */
.footer {
    background-color: var(--color-dark);
    border-top: 1px solid var(--color-gray);
    padding: 40px 0;
    text-align: center;
}

.footer p {
    color: var(--color-white-dim);
    font-size: var(--font-size-sm);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-size: var(--font-size-sm);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    border: 1px solid #4CAF50;
    color: #4CAF50;
}

.alert-error {
    background-color: rgba(229, 57, 53, 0.1);
    border: 1px solid var(--color-red);
    color: var(--color-red-light);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border: 1px solid #FF9800;
    color: #FF9800;
}

.alert-info {
    background-color: rgba(33, 150, 243, 0.1);
    border: 1px solid #2196F3;
    color: #2196F3;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-white);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--color-gray);
}

.table th {
    background-color: var(--color-gray);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tr:hover {
    background-color: var(--color-gray);
}

/* Admin Specific */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background-color: var(--color-dark);
    border-right: 1px solid var(--color-gray);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar .logo {
    padding: 0 20px 30px;
    border-bottom: 1px solid var(--color-gray);
    margin-bottom: 20px;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--color-white-muted);
    transition: var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background-color: var(--color-gray);
    color: var(--color-white);
}

.admin-nav a.active {
    border-left: 3px solid var(--color-red);
}

.admin-content {
    flex: 1;
    margin-left: 260px;
    padding: 30px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

/* Install Wizard */
.install-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.install-card {
    width: 100%;
    max-width: 500px;
}

.install-steps {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.install-step {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    position: relative;
}

.install-step.active {
    background-color: var(--color-red);
}

.install-step.completed {
    background-color: #4CAF50;
}

.install-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    width: 10px;
    height: 2px;
    background-color: var(--color-gray);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-white-muted); }
.text-red { color: var(--color-red); }
.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: var(--font-size-lg); }

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.p-1 { padding: 10px; }
.p-2 { padding: 20px; }
.p-3 { padding: 30px; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.gap-1 { gap: 10px; }
.gap-2 { gap: 20px; }

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: var(--font-size-2xl);
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .calculator-section {
        padding: 40px 0;
    }
    
    .admin-sidebar {
        display: none;
    }
    
    .admin-content {
        margin-left: 0;
    }
    
    .nav {
        display: none;
    }
}

/* PIN Input */
.pin-input-container {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.pin-input {
    width: 60px;
    height: 70px;
    font-size: var(--font-size-2xl);
    text-align: center;
    background-color: var(--color-gray);
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    color: var(--color-white);
    transition: var(--transition);
}

.pin-input:focus {
    outline: none;
    border-color: var(--color-red);
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: 10px;
}

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