/**
 * TRUST NET - Main Stylesheet
 * Premium Fintech Design
 * 2026-09-29
 */

/* ==================== ROOT VARIABLES ==================== */

:root {
    --primary-color: #1e3a8a;
    --primary-dark: #1e40af;
    --secondary-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #f59e0b;
    --success-color: #10b981;
    --light-bg: #f9fafb;
    --border-color: #e5e7eb;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --transition: all 0.3s ease-in-out;
}

/* ==================== RESET & BASE ==================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== TYPOGRAPHY ==================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--primary-dark);
}

/* ==================== BUTTONS ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    user-select: none;
    gap: var(--spacing-sm);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #047857;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #b91c1c;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ==================== FORMS ==================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-label .required {
    color: var(--danger-color);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background-color: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-control:disabled {
    background-color: var(--light-bg);
    cursor: not-allowed;
}

.form-control::placeholder {
    color: var(--text-lighter);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--danger-color);
}

.form-text {
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-light);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

/* ==================== CARDS ==================== */

.card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    margin: -var(--spacing-xl) -var(--spacing-xl) var(--spacing-lg) -var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.02);
}

.card-footer {
    margin: var(--spacing-lg) -var(--spacing-xl) -var(--spacing-xl) -var(--spacing-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.02);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.card-text {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.card.credit-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xl);
    border: none;
    min-height: 220px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card.credit-card .card-number {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    font-family: 'Courier New', monospace;
}

.card.credit-card .card-holder {
    font-size: 0.9rem;
    margin-top: var(--spacing-lg);
}

.card.credit-card .card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-lg);
}

/* ==================== ALERTS ==================== */

/* Bootstrap 5 alert */
.alert {
    position: relative;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-left: 4px solid transparent;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    line-height: 1.5;
}

.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
    border-left-color: #198754;
}

.alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
    border-left-color: #dc3545;
}

.alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffecb5;
    border-left-color: #ffc107;
}

.alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
    border-left-color: #0dcaf0;
}

.alert-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0;
    margin-left: auto;
}

/* ==================== NAVIGATION ==================== */

.navbar {
    background-color: white;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.navbar-nav {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
    align-items: center;
}

.navbar-nav a {
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--primary-color);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==================== CONTAINERS ==================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 4.5rem var(--spacing-lg) 4rem;
    text-align: center;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-primary {
    background-color: #fff;
    color: var(--primary-color);
    border-color: #fff;
}

.hero .btn-primary:hover:not(:disabled) {
    background-color: #eef2ff;
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.hero .btn-outline {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.85);
    color: #fff;
}

.hero .btn-outline:hover:not(:disabled) {
    background-color: #fff;
    color: var(--primary-color);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
    margin-bottom: var(--spacing-md);
}

.step-grid,
.feature-grid {
    display: grid;
    gap: 1.25rem;
}

.step-grid {
    grid-template-columns: repeat(3, 1fr);
}

.step-card,
.feature-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.step-card {
    box-shadow: var(--shadow-sm);
}

.step-no,
.feature-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin-bottom: 1rem;
    border-radius: 0.75rem;
    background: #eef2ff;
    color: var(--primary-color);
    font-weight: 700;
}

.step-card h3,
.feature-card h3 {
    margin-bottom: 0.4rem;
}

.step-card p,
.feature-card p {
    margin: 0;
}

.features {
    background: #fff;
}

.faq-list {
    display: grid;
    gap: 1rem;
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.35rem 1.5rem;
}

.faq-item h3 {
    margin-bottom: 0.4rem;
    font-size: 1.05rem;
}

.faq-item p {
    margin: 0;
}

.chat-log {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 420px;
    overflow-y: auto;
    padding: 0.25rem;
}

.chat-bubble {
    max-width: 85%;
    padding: 0.75rem 0.9rem;
    border-radius: 0.9rem;
    border: 1px solid var(--border-color);
}

.chat-bubble p {
    margin: 0;
    white-space: pre-wrap;
    color: var(--text-dark);
}

.chat-bubble small {
    display: block;
    margin-top: 0.35rem;
    color: var(--text-light);
}

.chat-bubble.mine {
    margin-left: auto;
    background: #eef2ff;
}

.chat-bubble.theirs {
    margin-right: auto;
    background: #fff;
}

.chat-draft {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 0.75rem;
    background: #fff7ed;
    border: 1px solid #fed7aa;
    color: var(--text-dark);
}

.support-dock {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 300;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.5rem;
    max-width: calc(100% - 2.5rem);
}

.support-dock a {
    display: inline-flex;
    align-items: center;
    padding: 0.8rem 1rem;
    border-radius: 999px;
    color: #fff;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.support-dock-live {
    background: var(--primary-color);
}

.support-dock-telegram {
    background: #229ed9;
}

.support-dock a:hover {
    color: #fff;
    transform: translateY(-2px);
}

.support-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1rem;
    align-items: start;
}

.ticket-row {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-dark);
}

.ticket-row small {
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ticket-row.active {
    border-color: var(--primary-color);
    background: #eef2ff;
}

@media (max-width: 768px) {
    .support-layout {
        grid-template-columns: 1fr;
    }
}

.live-ips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.live-empty {
    width: 100%;
    text-align: center;
    margin: 0;
}

.live-ip {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    color: var(--text-dark);
}

.live-ip small {
    color: var(--text-light);
}

.live-dot {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background: #dc2626;
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.16);
    animation: livePulse 1.4s ease-in-out infinite;
}

.live-dot.on {
    background: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
}

@keyframes livePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.feature-grid {
    grid-template-columns: repeat(2, 1fr);
}

.feature-card {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    background: var(--light-bg);
    min-height: 100%;
}

.feature-card .feature-mark {
    flex-shrink: 0;
    margin-bottom: 0;
    background: #fff;
    border: 1px solid var(--border-color);
}

.wallet-slots {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.wallet-slot {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    background: #fff;
}

.wallet-slot-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.wallet-slot p {
    margin: 0;
    color: var(--text-dark);
}

.wallet-slot-empty {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 92px;
    border-style: dashed;
    color: var(--text-light);
    background: var(--light-bg);
}

.wallet-slot-empty strong {
    color: var(--primary-color);
}

a.wallet-slot-empty:hover {
    border-color: var(--primary-color);
    background: #eef2ff;
}

textarea.seed-input {
    font-family: Consolas, 'Courier New', monospace;
    letter-spacing: 0.01em;
}

.form-text.is-match {
    color: var(--success-color);
    font-weight: 600;
}

/* ==================== GRID ==================== */

.grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ==================== TABLES ==================== */

.table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.table thead {
    background-color: var(--light-bg);
}

.table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background-color: rgba(30, 58, 138, 0.05);
}

/* ==================== BADGES ==================== */

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

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

.badge-success {
    background-color: var(--success-color);
    color: white;
}

.badge-danger {
    background-color: var(--danger-color);
    color: white;
}

.badge-warning {
    background-color: var(--warning-color);
    color: white;
}

/* ==================== LOADING & SPINNER ==================== */

.spinner {
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
}

/* ==================== MODALS ==================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    animation: modalSlide 0.3s ease-out;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .hero {
        padding: 2rem var(--spacing-lg);
    }
    
    .hero h1 {
        font-size: 1.65rem;
    }
    
    .grid,
    .grid-2,
    .grid-3,
    .grid-4,
    .step-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar-container {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .navbar-brand {
        justify-content: center;
    }

    .navbar-nav,
    .navbar-actions {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .navbar-nav .btn,
    .navbar-actions .btn {
        width: auto;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .table {
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .btn {
        width: 100%;
    }

    .navbar-nav .btn,
    .navbar-actions .btn,
    .hero-actions .btn {
        width: auto;
    }
}

/* ==================== UTILITY CLASSES ==================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.hidden { display: none !important; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.gap-4 { gap: var(--spacing-xl); }