:root {
    --primary: #000000;
    --secondary: #1a1a1a;
    --accent: #00ff88;
    --accent-dim: #00cc6a;
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --text-light: #ffffff;
    --text-gray: #a0a0a0;
    --border-color: #2a2a2a;
    --glass-bg: rgba(26, 26, 26, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    background-image:
        radial-gradient(circle at 15% 50%, rgba(0, 255, 136, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(0, 204, 106, 0.08) 0%, transparent 25%);
    color: var(--text-light);
    min-height: 100vh;
    padding: 2rem 0;
    line-height: 1.6;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #3a3a3a;
}

.register-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    margin: 2rem 0;
    position: relative;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Decorative top line */
.register-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.5;
}

.register-header {
    padding: 3rem 2rem 2rem;
    text-align: center;
    position: relative;
}

.register-header h1 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.register-header .lead {
    color: var(--text-gray);
    font-size: 1.1rem;
}

.register-content {
    padding: 0 3rem 3rem;
}

h4 {
    color: var(--text-light);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: var(--accent);
}

h4 i {
    margin-right: 0.75rem;
    font-size: 1.1em;
}

.form-label {
    color: var(--text-gray);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.form-control {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 0.95rem;
    color: var(--text-light);
    transition: all 0.2s ease;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.form-control:focus {
    background: rgba(0, 0, 0, 0.4);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.1);
    color: var(--text-light);
}

.form-control:hover:not(:focus) {
    border-color: rgba(255, 255, 255, 0.2);
}

/* Plans Carousel */
.plans-container {
    margin-top: 2rem;
    position: relative;
    padding: 0 2rem;
    /* Add padding for arrows */
}

.plans-carousel {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 1rem 0.5rem 2rem;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    /* Firefox */
    scroll-snap-type: x mandatory;
    /* Snap to cards */
}

.plans-carousel::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

.scroll-btn.visible {
    opacity: 1;
    pointer-events: auto;
}

.scroll-btn:hover {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

.scroll-left {
    left: -10px;
}

.scroll-right {
    right: -10px;
}

.plan-card {
    flex: 0 0 300px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    scroll-snap-align: center;
    /* Snap alignment */
}

.plan-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(0, 255, 136, 0.3);
    transform: translateY(-5px);
}

.plan-card.selected {
    background: rgba(0, 255, 136, 0.05);
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
    transform: scale(1.02);
}

.plan-popular {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(0, 255, 136, 0.4);
    z-index: 2;
}

.discount-badge {
    position: absolute;
    top: -8px;
    left: 20px;
    background: #ff4757;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
    z-index: 2;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.plan-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.plan-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-light);
    line-height: 1;
}

.plan-duration {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* Custom Radio Button */
.custom-radio {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    position: relative;
    transition: all 0.2s;
    flex-shrink: 0;
}

.plan-card.selected .custom-radio {
    border-color: var(--accent);
    background: var(--accent);
}

.plan-card.selected .custom-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
}

input[type="radio"] {
    display: none;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: auto;
    /* Push to bottom */
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
}

.feature-list li {
    padding: 0.35rem 0;
    color: var(--text-gray);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.feature-list li i {
    color: var(--accent);
    margin-right: 0.75rem;
    font-size: 0.8rem;
}

.btn-register {
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 12px;
    padding: 16px 48px;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
    min-width: 300px;
}

.btn-register:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 255, 136, 0.3);
    color: var(--primary);
}

.login-link {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-top: 1.5rem;
    display: block;
}

.login-link a {
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
    margin-left: 0.25rem;
}

.login-link a:hover {
    text-decoration: underline;
}

.alert {
    border: none;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.alert-danger {
    background: rgba(255, 71, 87, 0.1);
    color: #ff6b81;
    border: 1px solid rgba(255, 71, 87, 0.2);
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

/* Billing Toggle Styling */
.billing-toggle-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.billing-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-gray);
    transition: color 0.3s ease;
}

.billing-label.active {
    color: var(--text-light);
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary);
    border: 1px solid var(--border-color);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-light);
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--accent);
}

input:focus+.slider {
    box-shadow: 0 0 1px var(--accent);
}

input:checked+.slider:before {
    transform: translateX(30px);
    background-color: var(--primary);
}

.save-badge {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 0.5rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    body {
        padding: 1rem 0;
    }

    .container-fluid {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
    }

    .register-container {
        margin: 0;
        border-radius: 15px;
    }

    .register-content {
        padding: 0 1rem 2rem;
    }

    .register-header {
        padding: 1.5rem 1rem;
    }

    .register-header h1 {
        font-size: 1.75rem;
    }

    .register-header .lead {
        font-size: 0.95rem;
    }

    /* Google Button Responsive */
    .btn-light {
        min-width: 100% !important;
        width: 100%;
        padding: 0.875rem 1.5rem !important;
        font-size: 0.95rem;
    }

    /* Divider */
    .d-flex.align-items-center.justify-content-center.my-4 {
        max-width: 100% !important;
        margin: 1.5rem 0 !important;
    }

    .d-flex.align-items-center.justify-content-center.my-4 span {
        font-size: 0.75rem;
        white-space: nowrap;
    }

    /* Form sections */
    h4 {
        font-size: 1.1rem;
        margin-bottom: 1rem !important;
    }

    h4 i {
        font-size: 1rem;
    }

    /* Form inputs */
    .form-label {
        font-size: 0.875rem;
        margin-bottom: 0.375rem;
    }

    .form-control {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    /* Row spacing */
    .row.g-5 {
        gap: 2rem !important;
    }

    .row.g-3 {
        gap: 0.75rem !important;
    }

    /* Plans container */
    .plans-container {
        padding: 0;
        margin-top: 1.5rem;
    }

    .plans-carousel {
        padding: 1rem 1rem 2rem;
        scroll-padding-left: 1rem;
    }

    .plan-card {
        flex: 0 0 85%;
        scroll-snap-align: start;
        min-width: 280px;
    }

    .plan-name {
        font-size: 1.25rem;
    }

    .plan-price {
        font-size: 1.75rem;
    }

    .scroll-btn {
        display: flex !important;
        width: 36px;
        height: 36px;
        background: rgba(26, 26, 26, 0.95);
        backdrop-filter: blur(8px);
        font-size: 0.875rem;
    }

    .scroll-left {
        left: 0.25rem;
    }

    .scroll-right {
        right: 0.25rem;
    }

    /* Mobile stats layout */
    .plan-stats-row {
        display: flex;
        flex-direction: row;
        gap: 0.5rem;
        justify-content: space-between;
    }

    .plan-stats-col {
        flex: 1;
        width: auto;
    }

    .plan-stats-col>div {
        padding: 0.5rem !important;
    }

    .plan-stats-col .small {
        font-size: 0.7rem;
    }

    .plan-stats-col .fw-bold {
        font-size: 0.9rem;
    }

    /* Feature list */
    .feature-list li {
        font-size: 0.85rem;
        padding: 0.25rem 0;
    }

    /* Create Account Button */
    .btn-register {
        width: 100%;
        min-width: 100%;
        max-width: 100%;
        padding: 1rem 1.5rem;
        font-size: 1rem;
        margin: 0 auto;
    }

    /* Login link */
    .login-link {
        font-size: 0.875rem;
        margin-top: 1.25rem;
    }

    /* Alert messages */
    .alert {
        padding: 1rem;
        font-size: 0.875rem;
        margin-bottom: 1.5rem;
    }

    .alert i {
        font-size: 1.25rem;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .register-header h1 {
        font-size: 1.5rem;
    }

    .register-header .lead {
        font-size: 0.875rem;
    }

    .btn-light {
        padding: 0.75rem 1rem !important;
        font-size: 0.875rem;
        gap: 0.5rem !important;
    }

    .btn-light img {
        width: 18px;
        height: 18px;
    }

    h4 {
        font-size: 1rem;
    }

    .form-control {
        padding: 0.625rem;
        font-size: 0.875rem;
    }

    .plan-card {
        flex: 0 0 90%;
        min-width: 260px;
    }

    .plan-name {
        font-size: 1.1rem;
    }

    .plan-price {
        font-size: 1.5rem;
    }

    .plan-duration {
        font-size: 0.75rem;
    }

    .btn-register {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
    }

    .scroll-btn {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }
}

/* Landscape mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .register-header {
        padding: 1rem;
    }

    .register-header h1 {
        font-size: 1.5rem;
    }

    .register-content {
        padding: 0 1rem 1.5rem;
    }

    .row.g-5 {
        gap: 1.5rem !important;
    }
}