/**
 * HerznachBlendz - Modern Gray Startup Barbershop
 * Clean minimalist design with slate gray accents
 * Young professional startup vibe
 */

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

:root {
    --bg-dark: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --accent-gray: #64748b;
    --accent-light: #94a3b8;
    --text-primary: #e0e0e0;
    --text-secondary: #94a3b8;
--accent-silver: #cbd5e1;
    --gray-btn: #475569;
    --white-accent: #f8fafc;
    --font-modern: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-modern);
    line-height: 1.7;
}

/* ================== NAVIGATION & HEADER ================== */

header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--accent-gray);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-light);
    letter-spacing: 1px;
}

.nav-center {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-center a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 14px;
}

.nav-center a:hover {
    color: var(--accent-light);
}

.admin-btn {
    background: transparent;
    color: var(--accent-gray);
    border: 1px solid var(--accent-gray);
    padding: 10px 18px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
    opacity: 0.8;
}

.admin-btn:hover {
    opacity: 1;
    background: var(--accent-gray);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(100, 116, 139, 0.3);
}

/* ================== HERO SECTION ================== */

.hero {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    text-align: center;
    padding: 120px 20px;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 2px solid var(--metallic-gold);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(192, 160, 128, 0.05) 0%, transparent 70%);
    animation: glow 15s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-logo {
    width: 200px;
    height: 200px;
    margin-bottom: 40px;
    border-radius: 50%;
    border: 3px solid var(--metallic-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    object-fit: cover;
    box-shadow: 0 0 30px rgba(192, 160, 128, 0.3);
    background: var(--secondary-dark);
}

.hero h1 {
    font-size: 60px;
    font-weight: 700;
    color: var(--metallic-gold);
    text-shadow: 0 0 20px rgba(192, 160, 128, 0.4);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero p {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 40px;
    font-weight: 300;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gray-btn);
    color: var(--white-accent);
    padding: 15px 50px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 1px;
    box-shadow: 0 2px 8px rgba(71, 85, 105, 0.3);
}

.btn-primary:hover {
    background: var(--accent-gray);
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.4);
    transform: translateY(-1px);
}

/* ================== LOCATION SECTION ================== */

.location-section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
}

.section-title {
    font-size: 36px;
    color: var(--metallic-gold);
    text-shadow: 0 0 15px rgba(192, 160, 128, 0.3);
    margin-bottom: 50px;
    text-align: center;
    letter-spacing: 1px;
}

.location-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.location-info {
    background: var(--secondary-dark);
    border: 2px solid var(--metallic-gold);
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 0 20px rgba(192, 160, 128, 0.1);
}

.location-info h3 {
    font-size: 24px;
    color: var(--metallic-gold);
    margin-bottom: 20px;
}

.address-block {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.location-map {
    border-radius: 10px;
    border: 2px solid var(--metallic-gold);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(192, 160, 128, 0.1);
}

.location-map iframe {
    width: 100%;
    max-width: 600px;
    height: 450px;
    display: block;
    margin: 0 auto;
}

.btn-secondary {
    background: transparent;
    color: var(--accent-light);
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 600;
    border: 2px solid var(--accent-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 0.5px;
}

.btn-secondary:hover {
    background: var(--gray-btn);
    color: var(--white-accent);
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.3);
}

/* ================== SOCIAL SECTION ================== */

.social-section {
    background: var(--secondary-dark);
    padding: 60px 20px;
    text-align: center;
    border-top: 1px solid var(--metallic-gold);
    border-bottom: 1px solid var(--metallic-gold);
    margin: 80px 0;
}

.social-section h2 {
    font-size: 28px;
    color: var(--metallic-gold);
    margin-bottom: 30px;
}

.btn-instagram {
    background: transparent;
    color: var(--metallic-gold);
    padding: 15px 50px;
    font-size: 16px;
    font-weight: 700;
    border: 2px solid var(--metallic-gold);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 1px;
}

.btn-instagram:hover {
    background: var(--metallic-gold);
    color: var(--primary-dark);
    box-shadow: 0 0 30px rgba(192, 160, 128, 0.4);
}

/* ================== BOOKING SECTION ================== */

.booking-section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 20px;
}

.booking-container {
    background: var(--secondary-dark);
    border: 2px solid var(--metallic-gold);
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 0 30px rgba(192, 160, 128, 0.15);
}

.booking-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    max-width: 700px;
    margin: 0 auto;
}

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

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

label {
    color: var(--metallic-gold);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 14px;
}

input[type="text"],
input[type="tel"],
input[type="date"],
select {
    background: var(--bg-secondary);
    border: 2px solid var(--accent-gray);
    color: var(--text-primary);
    padding: 14px;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s ease;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
select:focus {
    outline: none;
    border-color: var(--accent-light);
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.1);
    background: var(--bg-card);
}

input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.8);
    cursor: pointer;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c0a080' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 20px;
    padding-right: 40px;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.time-slot {
    background: var(--bg-secondary);
    border: 2px solid var(--accent-gray);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
}

.time-slot:hover {
    border-color: var(--accent-light);
    background: var(--bg-card);
    box-shadow: 0 2px 8px rgba(100, 116, 139, 0.2);
}

.time-slot.selected {
    background: var(--gray-btn);
    color: var(--white-accent);
    border-color: var(--accent-light);
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.3);
}

.time-slot.booked {
    background: var(--tertiary-dark);
    color: var(--text-secondary);
    border-color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.5;
}

.price-display {
    background: var(--tertiary-dark);
    border: 1px solid var(--metallic-gold);
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 20px;
    grid-column: 1 / -1;
}

.price-display p {
    color: var(--metallic-gold);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}

.booking-form button {
    grid-column: 1 / -1;
    background: var(--gray-btn);
    color: var(--white-accent);
    padding: 18px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.3);
}

.booking-form button:hover {
    background: var(--accent-gray);
    box-shadow: 0 6px 16px rgba(71, 85, 105, 0.4);
    transform: translateY(-2px);
}

.booking-form button:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.booking-message {
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.booking-message.success {
    background: #1a4a2a;
    color: #6bff9b;
    border: 1px solid #50c080;
    display: block;
}

.booking-message.error {
    background: #4a1a1a;
    color: #ff6b6b;
    border: 1px solid #c05050;
    display: block;
}

/* ================== FOOTER ================== */

footer {
    background: var(--secondary-dark);
    border-top: 1px solid var(--metallic-gold);
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
    margin-top: 80px;
}

footer p {
    font-size: 14px;
}

/* ================== ADMIN SECTION ================== */

.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--metallic-gold);
    padding-bottom: 20px;
}

.admin-header h1 {
    color: var(--metallic-gold);
    text-shadow: 0 0 10px rgba(192, 160, 128, 0.3);
    font-size: 28px;
}

.logout-btn {
    background: var(--metallic-gold);
    color: var(--primary-dark);
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: var(--metallic-light);
    box-shadow: 0 0 15px rgba(192, 160, 128, 0.3);
}

.admin-section {
    background: var(--secondary-dark);
    border: 2px solid var(--metallic-gold);
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 0 20px rgba(192, 160, 128, 0.1);
}

.admin-section h2 {
    color: var(--metallic-gold);
    margin-bottom: 20px;
    font-size: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

table thead {
    background: var(--tertiary-dark);
    border-bottom: 2px solid var(--metallic-gold);
}

table th {
    color: var(--metallic-gold);
    padding: 15px;
    text-align: left;
    font-weight: 700;
    font-size: 14px;
}

table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--tertiary-dark);
    font-size: 14px;
}

table tr:hover {
    background: var(--tertiary-dark);
}

.btn-delete {
    background: #c05050;
    color: white;
    padding: 8px 15px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn-delete:hover {
    background: #ff6b6b;
    box-shadow: 0 0 10px rgba(192, 80, 80, 0.3);
}

/* ================== CALENDAR SECTION ================== */

.calendar-container {
    background: var(--secondary-dark);
    border: 2px solid var(--metallic-gold);
    border-radius: 10px;
    padding: 30px;
    overflow-x: auto;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    color: var(--metallic-gold);
}

.calendar-header button {
    background: transparent;
    color: var(--metallic-gold);
    border: 1px solid var(--metallic-gold);
    padding: 8px 20px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.calendar-header button:hover {
    background: var(--metallic-gold);
    color: var(--primary-dark);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    min-width: 100%;
}

.day-header {
    background: var(--tertiary-dark);
    color: var(--metallic-gold);
    padding: 12px;
    text-align: center;
    font-weight: 700;
    border-radius: 3px;
    border: 1px solid var(--metallic-gold);
}

.calendar-day {
    background: var(--tertiary-dark);
    padding: 15px;
    border: 1px solid var(--metallic-gold);
    border-radius: 5px;
    min-height: 120px;
    position: relative;
    transition: all 0.3s ease;
}

.calendar-day:hover {
    border-color: var(--metallic-light);
    box-shadow: 0 0 10px rgba(192, 160, 128, 0.2);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.day-number {
    color: var(--metallic-gold);
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 14px;
}

.day-bookings {
    font-size: 11px;
    line-height: 1.4;
}

.booking-time {
    background: var(--secondary-dark);
    color: var(--text-primary);
    padding: 4px 6px;
    border-radius: 2px;
    margin-bottom: 3px;
    border-left: 2px solid var(--metallic-gold);
}

/* ================== LOGIN PAGE ================== */

.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background: var(--secondary-dark);
    border: 2px solid var(--metallic-gold);
    border-radius: 10px;
    box-shadow: 0 0 30px rgba(192, 160, 128, 0.2);
}

.login-container h1 {
    color: var(--metallic-gold);
    text-align: center;
    margin-bottom: 30px;
    text-shadow: 0 0 10px rgba(192, 160, 128, 0.3);
}

.login-container .form-group {
    margin-bottom: 20px;
}

.login-container input[type="text"],
.login-container input[type="password"] {
    width: 100%;
}

.login-error {
    background: #4a1a1a;
    color: #ff6b6b;
    border: 1px solid #c05050;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
}

/* ================== RESPONSIVE ================== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 40px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .location-grid {
        grid-template-columns: 1fr;
    }
    
    .booking-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full {
        grid-column: 1;
    }
    
    .time-slots {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .admin-header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .nav-center {
        display: none;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .hero-logo {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px;
        min-height: auto;
    }
    
    .hero h1 {
        font-size: 30px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .time-slots {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-logo {
        width: 120px;
        height: 120px;
    }
    
    .calendar-grid {
        font-size: 12px;
    }
    
    .calendar-day {
        min-height: 80px;
        padding: 10px;
    }
}