:root {
    --bg-color: #0c0d12;
    --text-color: #f0f0f0;
    --accent-gold: #D4AF37;
    --accent-gold-hover: #b5952f;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --font-main: 'Montserrat', sans-serif;
    --danger: #ff4757;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(212, 175, 55, 0.06), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.04), transparent 25%);
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 1.5rem 1rem 6rem;
    position: relative;
    min-height: 100vh;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2rem;
    animation: fadeInDown 0.6s ease;
}

.header h1 {
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, #fff 0%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header .subtitle {
    font-size: 0.9rem;
    color: #a0a0a0;
}

/* Progress-bar */
.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-bottom: 2rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 25%;
    background: var(--accent-gold);
    box-shadow: 0 0 10px var(--accent-gold);
    transition: width 0.5s ease;
}

/* Glass Panels */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--glass-shadow);
    margin-bottom: 1.5rem;
}

/* Sections */
.step-section {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.step-section.active {
    display: block;
}

/* Back Button */
.back-btn {
    background: transparent;
    border: none;
    color: #a0a0a0;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.back-btn:hover {
    color: var(--accent-gold);
}

/* Master Cards */
.masters-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.master-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.master-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(212,175,55,0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.master-card.selected,
.master-card:active {
    border-color: var(--accent-gold);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 175, 55, 0.2);
}

.master-card.selected::before {
    opacity: 1;
}

.master-photo img {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--glass-border);
    transition: var(--transition);
}

.master-card.selected .master-photo img {
    border-color: var(--accent-gold);
}

.master-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: #fff;
}

.master-info p {
    color: #a0a0a0;
    font-size: 0.95rem;
}

/* Services */
.services-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.service-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.service-item:active {
    transform: scale(0.98);
}

.service-item.selected {
    border-color: var(--accent-gold);
    background: rgba(212, 175, 55, 0.1);
}

.service-details h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: #fff;
}

.service-price {
    font-weight: 600;
    color: var(--accent-gold);
}

.service-radio i {
    font-size: 1.5rem;
    color: var(--glass-border);
    transition: var(--transition);
}
.service-item.selected .service-radio i {
    color: var(--accent-gold);
}


/* Flatpickr Customization */
#date-picker {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 1rem;
    border-radius: 10px;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    margin-top: 10px;
    outline: none;
    transition: var(--transition);
}
#date-picker:focus {
    border-color: var(--accent-gold);
}
.flatpickr-calendar {
    background: #1a1c23 !important;
    border: 1px solid var(--glass-border) !important;
    box-shadow: var(--glass-shadow) !important;
}
.flatpickr-day.selected {
    background: var(--accent-gold) !important;
    border-color: var(--accent-gold) !important;
    color: #000 !important;
}

/* Time Slots */
.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
    margin-top: 1rem;
}

.time-slot {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.8rem 0;
    text-align: center;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.time-slot:hover {
    border-color: rgba(255,255,255,0.3);
}

.time-slot.selected {
    background: var(--accent-gold);
    color: #000;
    border-color: var(--accent-gold);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.4);
}

/* Form Styles */
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: #a0a0a0;
}

.form-group input {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 1rem;
    border-radius: 10px;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--accent-gold);
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.2);
}

.disclaimer {
    font-size: 0.8rem;
    color: #888;
    text-align: center;
    margin-top: -0.5rem;
    line-height: 1.4;
}

.summary-panel p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}
.summary-panel p strong {
    color: #a0a0a0;
}
.summary-panel h3, .time-panel h3 {
    margin-bottom: 10px;
}

/* Button & Bottom Bar */
.btn {
    display: inline-block;
    padding: 1.1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #e6ca6a 100%);
    color: #000;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-primary:active {
    transform: translateY(2px);
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.4);
}

.btn-primary:disabled {
    background: #444;
    color: #888;
    box-shadow: none;
    cursor: not-allowed;
}

.w-100 {
    width: 100%;
}
.mt-4 { margin-top: 2rem; }

.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: rgba(12, 13, 18, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--glass-border);
    z-index: 100;
    display: flex;
    justify-content: center;
}
.bottom-bar .btn {
    max-width: 500px;
}

/* Success Card */
.success-card {
    text-align: center;
    padding: 3rem 1.5rem;
}
.success-icon {
    width: 80px;
    height: 80px;
    background: rgba(212, 175, 55, 0.1);
    color: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
    animation: successPop 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}
@keyframes successPop {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.gold-text { color: var(--accent-gold); }

/* Loader */
.loader-container {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}
.loader {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(15px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-15px); }
    to { opacity: 1; transform: translateY(0); }
}