/* ==========================================================================
   Pay4Coins - Telegram Channel Manager (TCM)
   Premium Stylesheet
   ========================================================================== */

/* Import Google Fonts & Icons */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.1/font/bootstrap-icons.css');

:root {
    --bg-dark: #090d16;
    --bg-card: rgba(17, 25, 40, 0.75);
    --bg-card-hover: rgba(23, 33, 53, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --primary-color: #3b82f6; /* Pay4Coins Blue */
    --primary-glow: rgba(59, 130, 246, 0.35);
    --telegram-blue: #24A1DE;
    --telegram-glow: rgba(36, 161, 222, 0.3);
    --accent-emerald: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.2);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition-speed: 0.3s;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Background Gradients / Glow Effects */
body::before {
    content: '';
    position: absolute;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, rgba(9, 13, 22, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: absolute;
    bottom: -200px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--telegram-glow) 0%, rgba(9, 13, 22, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: rgba(9, 13, 22, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    height: 38px;
    width: auto;
}

.badge-tcm {
    background: linear-gradient(135deg, var(--telegram-blue), var(--primary-color));
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 0 15px var(--telegram-glow);
}

/* Landing Page Layout (Creator State) */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem auto;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 40%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    color: white;
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 0.9rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    padding: 0.9rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    transition: all var(--transition-speed);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-color-hover);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    transition: all var(--transition-speed);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.feature-card:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-size: 1.75rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Payment Gateway Layout (Customer Portal State) */
.customer-portal {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.5rem;
    width: 100%;
}

.channel-profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.channel-profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--telegram-blue), var(--primary-color));
}

.channel-avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 2.5rem;
    color: white;
    font-family: var(--font-heading);
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.channel-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.channel-description {
    color: var(--text-secondary);
    max-width: 600px;
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.channel-meta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
    width: 100%;
    max-width: 400px;
}

.channel-meta-item i {
    color: var(--telegram-blue);
    margin-right: 0.25rem;
}

.step-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
}

/* Tier/Package selection cards */
.tiers-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.tier-card {
    border: 2px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    padding: 1.75rem 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    display: flex;
    flex-direction: column;
}

.tier-card:hover {
    border-color: var(--border-color-hover);
    background: rgba(255, 255, 255, 0.04);
}

.tier-card.selected {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.08);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

.tier-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-emerald);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    text-transform: uppercase;
    box-shadow: 0 0 10px var(--accent-glow);
}

.tier-duration {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tier-price-container {
    margin: 1rem 0;
}

.tier-price {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: white;
}

.tier-period {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.tier-saving {
    color: var(--accent-emerald);
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: auto;
}

/* Telegram login widget mock */
.telegram-login-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 0;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--border-color);
}

.telegram-login-button {
    background-color: var(--telegram-blue);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 14px var(--telegram-glow);
    text-decoration: none;
}

.telegram-login-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px var(--telegram-glow);
    background-color: #2194cc;
}

.logged-in-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid var(--accent-emerald);
    border-radius: 12px;
    width: 100%;
}

.logged-in-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-emerald);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.logged-in-info {
    flex-grow: 1;
}

.logged-in-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.logged-in-status {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.btn-logout {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    text-decoration: underline;
}

.btn-logout:hover {
    color: white;
}

/* Payment options section */
.payment-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1rem;
    opacity: 0.5;
    pointer-events: none;
    transition: opacity var(--transition-speed);
}

.payment-methods-grid.enabled {
    opacity: 1;
    pointer-events: auto;
}

.payment-method-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 0.75rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.payment-method-card:hover {
    border-color: var(--border-color-hover);
    background: rgba(255, 255, 255, 0.03);
}

.payment-method-card.selected {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

.payment-method-card i {
    font-size: 1.75rem;
    color: var(--text-secondary);
}

.payment-method-card.selected i {
    color: var(--primary-color);
}

.payment-method-name {
    font-size: 0.8rem;
    font-weight: 600;
}

.checkout-box {
    margin-top: 2rem;
    text-align: center;
}

.checkout-box .btn-primary {
    width: 100%;
    max-width: 400px;
    justify-content: center;
}

/* Footer Section */
footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: auto;
}

footer a {
    color: var(--text-primary);
    text-decoration: none;
    margin: 0 0.5rem;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive adjustment */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .channel-profile-card {
        padding: 1.5rem;
    }
    
    .channel-title {
        font-size: 1.5rem;
    }
}