/*
  Vertex Security Training - Core Design System
  Cybersecurity Command Center Aesthetic
  Bold, cohesive, production-ready
*/

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600;700&display=swap');

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
    /* Vertex Brand Colors */
    --vertex-blue: #003865;
    --vertex-blue-dark: #002445;
    --vertex-gold: #CBA052;
    --vertex-green: #2DA44A;

    /* Command Center Palette */
    --bg-void: #050810;
    --bg-primary: #0a0e14;
    --bg-secondary: #121820;
    --bg-elevated: #1a2332;
    --bg-card: #1e2a3a;

    /* Borders & Dividers */
    --border-subtle: rgba(203, 160, 82, 0.12);
    --border-medium: rgba(203, 160, 82, 0.25);
    --border-strong: rgba(203, 160, 82, 0.4);
    --border-glow: rgba(203, 160, 82, 0.6);

    /* Text */
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-muted: #5f6368;
    --text-gold: #CBA052;

    /* Threat Indicators */
    --threat-red: #ff4757;
    --threat-red-glow: rgba(255, 71, 87, 0.4);
    --threat-orange: #ff6b35;

    /* Safe Indicators */
    --safe-cyan: #00d9ff;
    --safe-cyan-glow: rgba(0, 217, 255, 0.4);
    --safe-green: #00ff88;

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #CBA052 0%, #e6b866 100%);
    --gradient-blue: linear-gradient(135deg, var(--vertex-blue) 0%, var(--vertex-blue-dark) 100%);
    --gradient-void: linear-gradient(135deg, #050810 0%, #0a0e14 50%, #0d1117 100%);
    --gradient-card: linear-gradient(135deg, #1a2332 0%, rgba(203, 160, 82, 0.08) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.7);
    --shadow-gold: 0 8px 32px rgba(203, 160, 82, 0.3);
    --shadow-cyan: 0 8px 32px rgba(0, 217, 255, 0.3);

    /* Typography Scale */
    --font-display: 'Chakra Petch', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    /* Z-Index Scale */
    --z-base: 1;
    --z-elevated: 10;
    --z-overlay: 100;
    --z-modal: 1000;
    --z-toast: 10000;
}

/* ============================================
   GLOBAL RESETS & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-display);
    background: var(--gradient-void);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Scan-line effect overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 2px,
        rgba(203, 160, 82, 0.01) 2px,
        rgba(203, 160, 82, 0.01) 4px
    );
    pointer-events: none;
    z-index: var(--z-toast);
    animation: scanline 8s linear infinite;
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(100px); }
}

/* ============================================
   PAGE TRANSITIONS
   ============================================ */
@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-container {
    animation: pageEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   ATMOSPHERIC BACKGROUND
   ============================================ */
.vertex-atmosphere {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.vertex-atmosphere::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 30% 20%,
        rgba(203, 160, 82, 0.08) 0%,
        transparent 50%
    ),
    radial-gradient(
        circle at 70% 80%,
        rgba(0, 56, 101, 0.08) 0%,
        transparent 50%
    );
    animation: atmosphereShift 20s ease-in-out infinite alternate;
}

@keyframes atmosphereShift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(5%, 5%) rotate(5deg); }
}

/* Particle system */
.vertex-particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.vertex-particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--vertex-gold);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 15s ease-in-out infinite;
}

.vertex-particle:nth-child(1) {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.vertex-particle:nth-child(2) {
    left: 30%;
    animation-delay: 2s;
    animation-duration: 15s;
}

.vertex-particle:nth-child(3) {
    left: 50%;
    animation-delay: 4s;
    animation-duration: 18s;
}

.vertex-particle:nth-child(4) {
    left: 70%;
    animation-delay: 6s;
    animation-duration: 14s;
}

.vertex-particle:nth-child(5) {
    left: 85%;
    animation-delay: 8s;
    animation-duration: 16s;
}

.vertex-particle:nth-child(6) {
    left: 95%;
    animation-delay: 10s;
    animation-duration: 13s;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

/* ============================================
   TASKBAR / HEADER
   ============================================ */
.vertex-taskbar {
    position: sticky;
    top: 0;
    z-index: var(--z-elevated);
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-strong);
    padding: 14px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.taskbar-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.taskbar-logo {
    height: 28px;
    filter: brightness(1.1);
}

.taskbar-title {
    font-family: var(--font-mono);
    color: var(--text-gold);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.taskbar-right {
    display: flex;
    align-items: center;
    gap: 24px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.taskbar-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.taskbar-status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--safe-cyan);
    box-shadow: 0 0 12px var(--safe-cyan-glow);
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.taskbar-time {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    color: var(--safe-cyan);
    font-weight: 600;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.vertex-main {
    position: relative;
    z-index: var(--z-base);
    min-height: calc(100vh - 64px);
    padding: 32px;
}

/* ============================================
   CARDS & WINDOWS
   ============================================ */
.vertex-window {
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-strong);
    box-shadow:
        0 0 60px rgba(203, 160, 82, 0.1),
        0 20px 80px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    animation: windowEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes windowEnter {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.window-header {
    background: var(--gradient-card);
    border-bottom: 1px solid var(--border-strong);
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.window-title {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.window-body {
    padding: 32px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    font-family: var(--font-display);
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--bg-primary);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(203, 160, 82, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(0, 217, 255, 0.3));
    color: var(--safe-cyan);
    border: 2px solid var(--safe-cyan);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3), rgba(0, 217, 255, 0.4));
    box-shadow: var(--shadow-cyan);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.2), rgba(255, 71, 87, 0.3));
    color: var(--threat-red);
    border: 2px solid var(--threat-red);
}

.btn-danger:hover {
    background: linear-gradient(135deg, rgba(255, 71, 87, 0.3), rgba(255, 71, 87, 0.4));
    box-shadow: 0 8px 24px var(--threat-red-glow);
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-gold);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-elevated);
    border: 2px solid var(--border-medium);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-display);
    color: var(--text-primary);
    transition: all 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--vertex-gold);
    box-shadow: 0 0 0 3px rgba(203, 160, 82, 0.15);
    background: var(--bg-card);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* ============================================
   MODALS
   ============================================ */
.vertex-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
    padding: 20px;
}

.vertex-modal.active {
    display: flex;
}

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

.modal-content {
    background: var(--bg-elevated);
    border-radius: 12px;
    border: 1px solid var(--border-strong);
    padding: 40px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ============================================
   TRAINING AIDS PANEL
   ============================================ */
.training-aid-panel {
    position: fixed;
    top: 50%;
    right: 32px;
    transform: translateY(-50%);
    width: 280px;
    background: var(--bg-elevated);
    border: 2px solid var(--border-glow);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    z-index: var(--z-elevated);
    animation: panelSlideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes panelSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-medium);
}

.panel-icon {
    font-size: 1.5rem;
}

.panel-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-gold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.panel-list {
    list-style: none;
    padding: 0;
}

.panel-list-item {
    padding: 10px 0;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.panel-list-item::before {
    content: '▸';
    color: var(--threat-red);
    font-weight: 700;
    flex-shrink: 0;
}

/* ============================================
   BOTTOM BAR
   ============================================ */
.vertex-footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 32px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--text-gold);
}

.text-cyan {
    color: var(--safe-cyan);
}

.text-red {
    color: var(--threat-red);
}

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(203, 160, 82, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(203, 160, 82, 0.5);
}

/* ============================================
   RESPONSIVE - WIDTH BASED
   ============================================ */
@media (max-width: 1400px) {
    .vertex-main {
        padding: 24px;
    }

    .training-aid-panel {
        right: 20px;
        width: 240px;
    }
}

@media (max-width: 1280px) {
    .training-aid-panel {
        right: 16px;
        width: 220px;
        padding: 16px;
    }

    .panel-list-item {
        font-size: 0.75rem;
        padding: 8px 0;
    }
}

@media (max-width: 1150px) {
    .training-aid-panel {
        display: none;
    }
}

@media (max-width: 1024px) {
    .vertex-main {
        padding: 20px;
    }

    .vertex-taskbar {
        padding: 12px 24px;
    }
}

@media (max-width: 768px) {
    .vertex-main {
        padding: 16px;
    }

    .vertex-taskbar {
        padding: 12px 16px;
    }

    .taskbar-title {
        display: none;
    }

    .window-body {
        padding: 24px;
    }
}

/* ============================================
   RESPONSIVE - HEIGHT BASED (Laptop Screens)
   ============================================ */
@media (max-height: 850px) {
    .vertex-taskbar {
        padding: 10px 24px;
    }

    .taskbar-logo {
        height: 24px;
    }

    .vertex-footer {
        padding: 12px 24px;
    }

    .vertex-main {
        padding: 20px;
    }
}

@media (max-height: 750px) {
    .vertex-taskbar {
        padding: 8px 20px;
    }

    .taskbar-logo {
        height: 22px;
    }

    .taskbar-title {
        font-size: 0.8rem;
    }

    .taskbar-right {
        font-size: 0.8rem;
        gap: 16px;
    }

    .vertex-footer {
        padding: 8px 20px;
        font-size: 0.8rem;
    }

    .vertex-main {
        padding: 16px;
    }

    .window-header {
        padding: 16px 24px;
    }

    .window-body {
        padding: 24px;
    }
}

@media (max-height: 650px) {
    .vertex-taskbar {
        padding: 6px 16px;
    }

    .taskbar-logo {
        height: 18px;
    }

    .taskbar-title {
        display: none;
    }

    .taskbar-right {
        font-size: 0.75rem;
        gap: 12px;
    }

    .vertex-footer {
        padding: 6px 16px;
        font-size: 0.75rem;
    }

    .vertex-main {
        padding: 12px;
    }

    .window-header {
        padding: 12px 20px;
    }

    .window-body {
        padding: 16px;
    }
}