/* ============================================================
   HamzAVPN — Global Styles (Navy Theme + Silver Blue Accents)
   ============================================================ */

:root {
    /* Brand */
    --brand-navy: #163b75;
    --brand-navy-dark: #102c57;
    --primary: #8bb8ef;
    --primary-hover: #b7d5fa;
    --primary-gradient: linear-gradient(135deg, #163b75, #102c57);
    --primary-glow: rgba(139, 184, 239, 0.15);

    /* Backgrounds */
    --bg-dark: #050d1a;
    --bg-body: #081222;
    --bg-card: #0e1d33;
    --bg-card-hover: #142943;
    --bg-input: #10223b;
    --bg-input-focus: #163050;
    --bg-glass: rgba(14, 29, 51, 0.78);

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #b2bfd2;
    --text-muted: #8b9db8;

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-input: rgba(255, 255, 255, 0.1);
    --border-card: rgba(255, 255, 255, 0.08);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px var(--primary-glow);
    --shadow-input-focus: 0 0 0 3px rgba(139, 184, 239, 0.2);

    /* Transition */
    --transition: 0.2s ease;
    --transition-slow: 0.4s ease;

    /* Semantic colors */
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.15);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.15);
    --warning: #8bb8ef;
    --warning-bg: rgba(139, 184, 239, 0.15);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.15);
}

/* ---- Base ---- */
body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

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

/* ---- Navbar ---- */
.navbar {
    background: rgba(5, 13, 26, 0.94) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.75rem 0;
    transition: background var(--transition);
}

.navbar-brand img {
    height: 36px;
    width: 36px;
    object-fit: contain;
}

.navbar-brand span {
    font-size: 1.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #b7d5fa, #8bb8ef);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition) !important;
    padding: 0.5rem 1rem !important;
}
.nav-link:hover { color: var(--text-primary) !important; }

.logout-link { color: #ff6b6b !important; font-weight: 500; transition: var(--transition); }
.logout-link:hover { color: #ff4b4b !important; }

/* ---- Buttons ---- */
.btn-brand {
    background: var(--primary-gradient);
    border: none;
    color: white;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.btn-brand:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 184, 239, 0.35);
    color: white;
}
.btn-brand:active { transform: translateY(0); }

.btn-brand-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    font-weight: 600;
    padding: 10px 26px;
    border-radius: var(--radius-md);
    transition: all var(--transition);
}
.btn-brand-outline:hover {
    background: var(--brand-navy);
    border-color: var(--primary-hover);
    color: white;
}

/* Loading state for buttons */
.btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}
.btn-loading .btn-text { visibility: hidden; }
.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px; height: 20px;
    top: 50%; left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ---- Cards ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), box-shadow var(--transition);
}

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-lg);
}
.glass-card .card-body { background: transparent; }

.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ---- Form Inputs ---- */
.form-input, .form-control {
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.95rem;
    transition: all var(--transition);
    width: 100%;
}
.form-input:focus, .form-control:focus {
    background: var(--bg-input-focus);
    color: var(--text-primary);
    border-color: var(--primary);
    box-shadow: var(--shadow-input-focus);
    outline: none;
}
.form-input::placeholder, .form-control::placeholder {
    color: var(--text-muted);
}

.input-icon-wrapper {
    position: relative;
}
.input-icon-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition);
    z-index: 2;
}
.input-icon-wrapper .form-input,
.input-icon-wrapper .form-control {
    padding-left: 42px;
}
.input-icon-wrapper .form-input:focus ~ .input-icon,
.input-icon-wrapper:focus-within .input-icon {
    color: var(--primary);
}

.form-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

/* ---- Alerts ---- */
.alert-custom {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 1rem;
}

.alert-error {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    color: #ffb3b3;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success);
    color: #a3e4b8;
}

.alert-info {
    background: var(--info-bg);
    border: 1px solid var(--info);
    color: #93c5fd;
}

.alert-warning-custom {
    background: var(--warning-bg);
    border: 1px solid var(--warning);
    color: #b7d5fa;
}

/* ---- Tariff Cards ---- */
.tariff-card {
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.tariff-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.tariff-card.popular {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.tariff-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}
.tariff-price .period {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.tariff-badge {
    background: var(--primary-gradient);
    color: white;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    position: absolute;
    top: 12px;
    right: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tariff-features {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}
.tariff-features li {
    padding: 0.35rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.tariff-features li i {
    color: var(--success);
    margin-right: 8px;
    width: 16px;
}

/* ---- Status Badges ---- */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}
.status-badge-active {
    background: var(--success-bg);
    color: var(--success);
}
.status-badge-expired {
    background: var(--danger-bg);
    color: var(--danger);
}
.status-badge-pending {
    background: var(--warning-bg);
    color: var(--warning);
}

/* Pulsing dot */
.pulse-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.pulse-dot-green {
    background: var(--success);
    animation: pulse-green 2s infinite;
}
.pulse-dot-red {
    background: var(--danger);
    animation: pulse-red 2s infinite;
}

/* ---- Avatar Placeholder ---- */
.avatar-placeholder {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

/* ---- Copy Field ---- */
.copy-field {
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    padding: 0;
    overflow: hidden;
}
.copy-field input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 10px 14px;
    font-size: 0.85rem;
    font-family: monospace;
    outline: none;
}
.copy-field .copy-btn {
    background: transparent;
    border: none;
    border-left: 1px solid var(--border-input);
    color: var(--text-secondary);
    padding: 10px 14px;
    cursor: pointer;
    transition: color var(--transition), background var(--transition);
}
.copy-field .copy-btn:hover {
    color: var(--primary);
    background: rgba(139, 184, 239, 0.1);
}

/* ---- Stepper ---- */
.stepper {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}
.stepper-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.stepper-number {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}
.stepper-content {
    flex: 1;
}
.stepper-content h6 {
    margin-bottom: 0.25rem;
    font-weight: 600;
}
.stepper-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ---- Progress Bar ---- */
.progress-custom {
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
}
.progress-custom .bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    transition: width var(--transition-slow);
}

/* ---- Password Strength ---- */
.password-strength {
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.08);
    margin-top: 6px;
    overflow: hidden;
}
.password-strength .bar {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s, background 0.3s;
}
.password-strength .bar.weak { width: 33%; background: var(--danger); }
.password-strength .bar.medium { width: 66%; background: var(--warning); }
.password-strength .bar.strong { width: 100%; background: var(--success); }

/* ---- Toast ---- */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast-item {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideInRight 0.3s ease;
    max-width: 360px;
}
.toast-item.success { border-left: 3px solid var(--success); }
.toast-item.error { border-left: 3px solid var(--danger); }
.toast-item.info { border-left: 3px solid var(--info); }
.toast-item.warning { border-left: 3px solid var(--warning); }

.toast-item.fade-out { animation: slideOutRight 0.3s ease forwards; }

/* ---- Skeleton Loading ---- */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, #173252 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
.skeleton-text { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 22px; width: 60%; margin-bottom: 12px; }
.skeleton-avatar { width: 56px; height: 56px; border-radius: 50%; }
.skeleton-card { height: 120px; }

/* ---- Hero ---- */
.hero-section {
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 120%;
    background: radial-gradient(ellipse, rgba(139, 184, 239, 0.08) 0%, transparent 70%);
    pointer-events: none;
}
.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 540px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}
.hero-stat {
    text-align: center;
}
.hero-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}
.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ---- Hero Visual SVG Globe ---- */
.hero-visual {
    position: relative;
    width: 100%;
}
.hero-svg {
    width: 100%;
    height: auto;
    overflow: visible;
}

@keyframes hvRingOuter {
    0%, 100% { opacity: 0.12; }
    50%       { opacity: 0.38; }
}
@keyframes hvRingInner {
    0%, 100% { opacity: 0.20; }
    50%       { opacity: 0.50; }
}
@keyframes hvShield {
    0%, 100% { opacity: 0.88; }
    50%       { opacity: 1;    }
}
@keyframes hvNode {
    0%, 100% { opacity: 0.7; }
    50%       { opacity: 1;   }
}
@keyframes hvDashFlow {
    to { stroke-dashoffset: -18; }
}
@keyframes hvFloat {
    0%, 100% { transform: translateY(0px);  }
    50%       { transform: translateY(-14px); }
}

.hv-ring-outer { animation: hvRingOuter 4s ease-in-out infinite; }
.hv-ring-inner { animation: hvRingInner 4s ease-in-out infinite 0.9s; }
.hv-shield     { animation: hvShield 3s ease-in-out infinite; }

.hv-node       { animation: hvNode 2.6s ease-in-out infinite; }
.hv-n1         { animation-delay: 0s;    }
.hv-n2         { animation-delay: 0.5s;  }
.hv-n3         { animation-delay: 1.0s;  }
.hv-n4         { animation-delay: 1.5s;  }
.hv-n5         { animation-delay: 2.0s;  }

.hv-conn       { animation: hvDashFlow 1.6s linear infinite; }
.hv-c1         { animation-delay: 0s;    }
.hv-c2         { animation-delay: -0.5s; }
.hv-c3         { animation-delay: -1.0s; }
.hv-c4         { animation-delay: -0.3s; }
.hv-c5         { animation-delay: -0.8s; }

.hero-visual   { animation: hvFloat 5s ease-in-out infinite; }

/* ---- Features Grid ---- */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform var(--transition), border-color var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 184, 239, 0.3);
}
.feature-icon {
    width: 56px; height: 56px;
    border-radius: var(--radius-md);
    background: rgba(139, 184, 239, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.4rem;
    color: var(--primary);
}
.feature-card h5 { font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; margin: 0; }

/* ---- Section Titles ---- */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
}
.section-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 1rem;
}

/* ---- Footer ---- */
footer {
    margin-top: auto;
    background: var(--bg-dark);
    padding: 2rem 0;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-muted);
}
footer a { color: var(--text-secondary); }
footer a:hover { color: var(--primary); }

/* ---- Data table ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
    font-weight: 600;
}
.data-table td {
    padding: 0.75rem;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}
.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ---- Stat Value ---- */
.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---- Utility: text colors ---- */
.text-gray { color: var(--text-secondary) !important; }
.text-brand { color: var(--primary) !important; }
.text-success-custom { color: var(--success) !important; }
.text-danger-custom { color: var(--danger) !important; }

/* ============================================================
   Animations
   ============================================================ */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100px); }
}

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

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes pulse-green {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

@keyframes pulse-red {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(139, 184, 239, 0.2); }
    50% { box-shadow: 0 0 40px rgba(139, 184, 239, 0.4); }
}

/* Page load animation */
.animate-in {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}
.animate-in-delay-1 { animation-delay: 0.1s; }
.animate-in-delay-2 { animation-delay: 0.2s; }
.animate-in-delay-3 { animation-delay: 0.3s; }
.animate-in-delay-4 { animation-delay: 0.4s; }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-stats { gap: 1.25rem; }
    .tariff-price { font-size: 2rem; }
    .section-title { font-size: 1.6rem; }
    .stat-value { font-size: 1.5rem; }

    .glass-container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .toast-container {
        right: 10px;
        left: 10px;
    }
    .toast-item { max-width: 100%; }
}

@media (max-width: 576px) {
    .hero-title { font-size: 1.8rem; }
    .hero-stats { flex-direction: column; gap: 0.75rem; align-items: flex-start; }

    /* Larger touch targets on mobile */
    .btn-brand, .btn-brand-outline { padding: 14px 24px; min-height: 48px; }
    .form-input, .form-control { padding: 14px 16px; min-height: 48px; }
    .nav-link { padding: 0.75rem 1rem !important; }
}

/* Smooth scroll */
html { scroll-behavior: smooth; }

/* ---- Hover effect utility ---- */
.hover-effect { transition: color var(--transition); }
.hover-effect:hover { color: var(--primary) !important; }

/* ---- HamzAVPN identity and keyboard navigation ---- */
.auth-brand { display: flex; align-items: center; justify-content: center; gap: 10px; }
.auth-brand img { width: 48px; height: 48px; object-fit: contain; }
.brand-mark { width: 36px; height: 36px; object-fit: contain; flex-shrink: 0; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-brand:focus-visible, .btn-brand-outline:focus-visible { box-shadow: var(--shadow-input-focus); }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}