/* ═══════════════════════════════════════════════════════════════
   2TechHub — Premium Design System v2.0
   Modern, customer-friendly, visually engaging
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --brand-50: #eef2ff;
    --brand-100: #e0e7ff;
    --brand-200: #c7d2fe;
    --brand-400: #818cf8;
    --brand-500: #6366f1;
    --brand-600: #4f46e5;
    --brand-700: #4338ca;
    --brand-900: #312e81;

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-accent: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --gradient-info: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    --gradient-hero: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);

    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.03);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
    --shadow-md: 0 4px 12px -2px rgba(0,0,0,0.06), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 12px 28px -4px rgba(0,0,0,0.08), 0 4px 8px -2px rgba(0,0,0,0.02);
    --shadow-xl: 0 20px 40px -8px rgba(0,0,0,0.1), 0 8px 16px -4px rgba(0,0,0,0.03);
    --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 24px rgba(99,102,241,0.12);
    --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px -2px rgba(0,0,0,0.04);
    --shadow-card-hover: 0 4px 16px -2px rgba(0,0,0,0.08), 0 12px 28px -4px rgba(0,0,0,0.06);

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    --glass-bg: rgba(255,255,255,0.72);
    --glass-border: rgba(255,255,255,0.4);
    --glass-blur: 20px;
}

/* ═══════ SCROLLBAR ═══════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.2); }
html, body * { scrollbar-color: rgba(0,0,0,0.12) transparent; scrollbar-width: thin; }

/* ═══════ GLOBAL TYPOGRAPHY ═══════ */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}
.mud-typography { font-family: 'Inter', sans-serif !important; }

/* ═══════ LOADING SCREEN ═══════ */
.loading-progress { position: relative; display: block; width: 5rem; height: 5rem; margin: 0 auto 1.5rem; }
.loading-progress circle { fill: none; stroke: #e5e7eb; stroke-width: 0.4rem; transform-origin: 50% 50%; transform: rotate(-90deg); }
.loading-progress circle:last-child { stroke: #6366f1; stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%; transition: stroke-dasharray 0.05s ease-in-out; }
.loading-progress-text { text-align: center; font-weight: 600; font-size: 0.85rem; color: #6366f1; font-family: 'Inter', sans-serif; }
.loading-progress-text:after { content: var(--blazor-load-percentage-text, "Loading"); }

/* ═══════ BLAZOR ERROR ═══════ */
#blazor-error-ui { background: #fef3c7; bottom: 0; box-shadow: 0 -2px 12px rgba(0,0,0,0.08); display: none; left: 0; padding: 0.75rem 1.5rem; position: fixed; width: 100%; z-index: 9999; border-top: 2px solid #f59e0b; }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 1rem; top: 0.5rem; }

/* ═══════ UTILITY ═══════ */
.cursor-pointer { cursor: pointer; }

/* ═══════ APP BAR ═══════ */
.mud-appbar { backdrop-filter: blur(12px) saturate(180%) !important; -webkit-backdrop-filter: blur(12px) saturate(180%) !important; }

/* ═══════ DRAWER / SIDEBAR ═══════ */
.mud-drawer { border-right: none !important; box-shadow: 1px 0 8px rgba(0,0,0,0.04) !important; }
.mud-nav-link { border-radius: var(--radius-sm) !important; margin: 1px 0 !important; transition: all var(--transition-normal) !important; font-weight: 500 !important; font-size: 0.855rem !important; min-height: 40px !important; }
.mud-nav-link:hover { background: rgba(99,102,241,0.06) !important; }
.mud-nav-link.active { background: rgba(99,102,241,0.1) !important; color: #4f46e5 !important; font-weight: 600 !important; border-right: none !important; position: relative; }
.mud-nav-link.active::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 20px; border-radius: 0 4px 4px 0; background: var(--gradient-primary); }
.mud-nav-link .mud-nav-link-icon { margin-right: 12px !important; }

/* ═══════ LOGIN BACKGROUND ═══════ */
.login-bg { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #312e81 0%, #4f46e5 40%, #7c3aed 70%, #a78bfa 100%); position: relative; overflow: hidden; }
.login-bg::before { content: ''; position: absolute; width: 700px; height: 700px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%); top: -250px; right: -150px; animation: float-orb 12s ease-in-out infinite; }
.login-bg::after { content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%); bottom: -200px; left: -100px; animation: float-orb 15s ease-in-out infinite reverse; }
@keyframes float-orb { 0%, 100% { transform: translateY(0) scale(1); } 33% { transform: translateY(-20px) scale(1.03); } 66% { transform: translateY(10px) scale(0.98); } }

/* ═══════ GLASS CARD ═══════ */
.glass-card { background: rgba(255,255,255,0.95) !important; backdrop-filter: blur(var(--glass-blur)) saturate(180%); -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%); border: 1px solid rgba(255,255,255,0.5) !important; box-shadow: 0 20px 60px -10px rgba(0,0,0,0.2), 0 0 0 1px rgba(255,255,255,0.3) !important; border-radius: var(--radius-2xl) !important; }

/* ═══════ MODERN CARD ═══════ */
.modern-card { border-radius: var(--radius-lg) !important; border: 1px solid rgba(0,0,0,0.06) !important; box-shadow: var(--shadow-card) !important; transition: all var(--transition-slow) !important; overflow: hidden; position: relative; }
.modern-card:hover { box-shadow: var(--shadow-card-hover) !important; transform: translateY(-2px); border-color: rgba(99,102,241,0.12) !important; }

/* ═══════ SECTION CARD ═══════ */
.section-card { border-radius: var(--radius-lg) !important; border: 1px solid rgba(0,0,0,0.06) !important; box-shadow: var(--shadow-card) !important; transition: all var(--transition-normal) !important; background: #fff !important; }
.section-card:hover { box-shadow: var(--shadow-md) !important; }

/* ═══════ STAT CARD ═══════ */
.stat-card { border-radius: var(--radius-lg) !important; border: 1px solid rgba(0,0,0,0.05) !important; box-shadow: var(--shadow-card) !important; transition: all var(--transition-slow) !important; position: relative; overflow: hidden; background: #fff !important; }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-primary); opacity: 0; transition: opacity var(--transition-normal); }
.stat-card::after { content: ''; position: absolute; top: -40px; right: -40px; width: 120px; height: 120px; border-radius: 50%; background: linear-gradient(135deg, rgba(99,102,241,0.04) 0%, transparent 70%); transition: all var(--transition-slow); }
.stat-card:hover { transform: translateY(-4px) !important; box-shadow: var(--shadow-lg), var(--shadow-glow) !important; border-color: rgba(99,102,241,0.15) !important; }
.stat-card:hover::before { opacity: 1; }
.stat-card:hover::after { transform: scale(1.3) translate(-10px, 10px); }

/* ═══════ GRADIENT AVATARS ═══════ */
.gradient-avatar-primary { background: var(--gradient-primary) !important; box-shadow: 0 4px 14px rgba(99,102,241,0.3); }
.gradient-avatar-warning { background: var(--gradient-warning) !important; box-shadow: 0 4px 14px rgba(245,158,11,0.3); }
.gradient-avatar-error { background: var(--gradient-accent) !important; box-shadow: 0 4px 14px rgba(236,72,153,0.3); }
.gradient-avatar-info { background: var(--gradient-info) !important; box-shadow: 0 4px 14px rgba(59,130,246,0.3); }
.gradient-avatar-success { background: var(--gradient-success) !important; box-shadow: 0 4px 14px rgba(16,185,129,0.3); }

/* ═══════ PAGE HEADER ═══════ */
.page-header-line { width: 40px; height: 3px; border-radius: 3px; background: var(--gradient-primary); margin-top: 8px; }

/* ═══════ WELCOME BANNER ═══════ */
.welcome-banner { background: var(--gradient-hero); border-radius: var(--radius-xl); padding: 32px 36px; position: relative; overflow: hidden; box-shadow: var(--shadow-lg), 0 0 40px rgba(99,102,241,0.12); }
.welcome-banner::before { content: ''; position: absolute; top: -60%; right: -10%; width: 400px; height: 400px; border-radius: 50%; background: rgba(255,255,255,0.08); }
.welcome-banner::after { content: ''; position: absolute; bottom: -40%; left: 20%; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,0.05); }

/* ═══════ QUICK ACTION CARDS ═══════ */
.quick-card { background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: var(--radius-lg); padding: 20px; cursor: pointer; transition: all var(--transition-slow); height: 100%; box-shadow: var(--shadow-xs); position: relative; overflow: hidden; }
.quick-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--gradient-primary); transform: scaleX(0); transition: transform var(--transition-slow); }
.quick-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg), var(--shadow-glow); border-color: rgba(99,102,241,0.15); }
.quick-card:hover::before { transform: scaleX(1); }
.quick-card-icon { width: 44px; height: 44px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; box-shadow: var(--shadow-sm); }

/* ═══════ CARD HEADER GRADIENT ═══════ */
.card-header-gradient { background: var(--gradient-primary); position: relative; overflow: hidden; }
.card-header-gradient::before { content: ''; position: absolute; top: -50%; right: -20%; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,0.08); }

/* ═══════ TICKET ROW ═══════ */
.ticket-row { border-radius: var(--radius-sm); transition: all var(--transition-fast); border: 1px solid transparent; }
.ticket-row:hover { background: rgba(99,102,241,0.04); border-color: rgba(99,102,241,0.08); }

/* ═══════ ANNOUNCEMENT ITEM ═══════ */
.announcement-item { border: 1px solid rgba(0,0,0,0.05); transition: all var(--transition-fast); }
.announcement-item:hover { background: rgba(99,102,241,0.03); border-color: rgba(99,102,241,0.1); }

/* ═══════ NOTIFICATION ═══════ */
.notification-unread { background: rgba(99,102,241,0.02) !important; }

/* ═══════ CHAT ═══════ */
.chat-bubble { border-radius: var(--radius-md); }
.internal-note-bg { background: rgba(245,158,11,0.05) !important; border-left: 3px solid #f59e0b; }

/* ═══════ QUICK ACTION BTN ═══════ */
.quick-action-btn { border-radius: var(--radius-md) !important; transition: all var(--transition-normal) !important; text-transform: none !important; font-weight: 500 !important; padding: 12px 16px !important; border: 1.5px solid rgba(0,0,0,0.08) !important; }
.quick-action-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md) !important; }

/* ═══════ TABLE ═══════ */
.mud-table { border-radius: var(--radius-lg) !important; overflow: hidden !important; border: 1px solid rgba(0,0,0,0.06) !important; box-shadow: var(--shadow-card) !important; }
.mud-table .mud-table-head .mud-table-cell { font-weight: 600 !important; font-size: 0.7rem !important; text-transform: uppercase !important; letter-spacing: 0.06em !important; color: rgba(0,0,0,0.4) !important; border-bottom: 1px solid rgba(0,0,0,0.06) !important; }
.mud-table-row { transition: all var(--transition-fast) !important; }
.mud-table-row:hover { background: rgba(99,102,241,0.03) !important; }
.mud-table .mud-table-toolbar { background: transparent !important; border-bottom: 1px solid rgba(0,0,0,0.06) !important; }

/* ═══════ CHIP ═══════ */
.mud-chip { font-weight: 500 !important; font-family: 'Inter', sans-serif !important; border-radius: var(--radius-xs) !important; }

/* ═══════ INPUTS ═══════ */
.mud-input-outlined .mud-input-outlined-border { border-radius: var(--radius-sm) !important; transition: border-color var(--transition-fast), box-shadow var(--transition-fast) !important; }
.mud-input-outlined:focus-within .mud-input-outlined-border { box-shadow: 0 0 0 3px rgba(99,102,241,0.1) !important; }
.mud-select .mud-input-outlined .mud-input-outlined-border { border-radius: var(--radius-sm) !important; }

/* ═══════ BUTTONS ═══════ */
.mud-button-filled { box-shadow: var(--shadow-sm) !important; transition: all var(--transition-normal) !important; border-radius: var(--radius-sm) !important; }
.mud-button-filled:hover { box-shadow: var(--shadow-md) !important; transform: translateY(-1px); }
.mud-button-filled:active { transform: translateY(0); }
.mud-fab { box-shadow: var(--shadow-lg) !important; }

/* ═══════ SEND BTN ═══════ */
.mud-icon-button.mud-button-filled-primary { border-radius: var(--radius-sm) !important; box-shadow: 0 4px 14px rgba(99,102,241,0.25) !important; transition: all var(--transition-normal) !important; }
.mud-icon-button.mud-button-filled-primary:hover { box-shadow: 0 6px 20px rgba(99,102,241,0.35) !important; transform: translateY(-1px); }

/* ═══════ PROFILE HEADER ═══════ */
.profile-gradient-header { background: var(--gradient-primary); height: 80px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; margin: -24px -24px 0 -24px; }

/* ═══════ EMPTY STATE ═══════ */
.empty-state-icon { width: 72px; height: 72px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(139,92,246,0.08) 100%); margin-bottom: 16px; }

/* ═══════ NAV SECTIONS ═══════ */
.nav-user-section { padding: 16px; margin: 8px 12px; border-radius: var(--radius-md); background: linear-gradient(135deg, rgba(99,102,241,0.06) 0%, rgba(139,92,246,0.04) 100%); border: 1px solid rgba(99,102,241,0.08); }
.nav-section-label { font-size: 0.62rem !important; font-weight: 700 !important; letter-spacing: 0.12em !important; text-transform: uppercase !important; color: rgba(0,0,0,0.32) !important; padding: 0 12px !important; margin-top: 20px !important; margin-bottom: 4px !important; }

/* ═══════ DIALOG / SNACKBAR ═══════ */
.mud-dialog { border-radius: var(--radius-xl) !important; box-shadow: var(--shadow-2xl) !important; }
.mud-snackbar { border-radius: var(--radius-md) !important; box-shadow: var(--shadow-lg) !important; }

/* ═══════ ANIMATIONS ═══════ */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { animation: fadeInUp 0.4s ease-out forwards; }
.fade-in-up-delay-1 { animation: fadeInUp 0.4s ease-out 0.05s forwards; opacity: 0; }
.fade-in-up-delay-2 { animation: fadeInUp 0.4s ease-out 0.1s forwards; opacity: 0; }
.fade-in-up-delay-3 { animation: fadeInUp 0.4s ease-out 0.15s forwards; opacity: 0; }
.fade-in-up-delay-4 { animation: fadeInUp 0.4s ease-out 0.2s forwards; opacity: 0; }

@keyframes pulse-dot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.85); } }
.pulse-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #ef4444; animation: pulse-dot 1.5s ease-in-out infinite; margin-right: 6px; }

/* ═══════ DARK MODE ═══════ */
.mud-theme-dark .glass-card { background: rgba(30,27,75,0.92) !important; border-color: rgba(255,255,255,0.1) !important; }
.mud-theme-dark .modern-card, .mud-theme-dark .section-card { border-color: rgba(255,255,255,0.06) !important; background: #1e293b !important; }
.mud-theme-dark .stat-card { border-color: rgba(255,255,255,0.06) !important; background: #1e293b !important; }
.mud-theme-dark .stat-card::after { background: rgba(139,92,246,0.06); }
.mud-theme-dark .stat-card:hover { border-color: rgba(139,92,246,0.2) !important; }
.mud-theme-dark .quick-card { background: #1e293b; border-color: rgba(255,255,255,0.06); }
.mud-theme-dark .quick-card:hover { border-color: rgba(139,92,246,0.2); box-shadow: var(--shadow-lg), 0 0 24px rgba(139,92,246,0.1); }
.mud-theme-dark .empty-state-icon { background: rgba(139,92,246,0.12); }
.mud-theme-dark .mud-table .mud-table-head .mud-table-cell { color: rgba(255,255,255,0.35) !important; }
.mud-theme-dark .mud-nav-link.active { background: rgba(139,92,246,0.12) !important; color: #a78bfa !important; }
.mud-theme-dark .mud-nav-link:hover { background: rgba(139,92,246,0.08) !important; }
.mud-theme-dark .mud-drawer { box-shadow: 1px 0 8px rgba(0,0,0,0.2) !important; }
.mud-theme-dark .quick-action-btn { border-color: rgba(255,255,255,0.1) !important; }
.mud-theme-dark .mud-table-row:hover { background: rgba(139,92,246,0.06) !important; }
.mud-theme-dark .ticket-row:hover { background: rgba(139,92,246,0.06); border-color: rgba(139,92,246,0.1); }
.mud-theme-dark .announcement-item { border-color: rgba(255,255,255,0.06); }
.mud-theme-dark .announcement-item:hover { background: rgba(139,92,246,0.04); border-color: rgba(139,92,246,0.1); }
.mud-theme-dark .nav-user-section { background: rgba(139,92,246,0.08); border-color: rgba(139,92,246,0.12); }
.mud-theme-dark .nav-section-label { color: rgba(255,255,255,0.25) !important; }
.mud-theme-dark .mud-table { border-color: rgba(255,255,255,0.06) !important; }
.mud-theme-dark .mud-table .mud-table-toolbar { border-bottom-color: rgba(255,255,255,0.06) !important; }
.mud-theme-dark .notification-unread { background: rgba(139,92,246,0.04) !important; }
.mud-theme-dark .mud-input-outlined:focus-within .mud-input-outlined-border { box-shadow: 0 0 0 3px rgba(139,92,246,0.12) !important; }

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 600px) {
    .welcome-banner { padding: 20px; }
    .welcome-banner .mud-text-h4 { font-size: 1.35rem !important; }
    .quick-card { padding: 14px; }
    .quick-card-icon { width: 36px; height: 36px; margin-bottom: 10px; }
}