/* Custom Design System for ETHANJOH Landing Page */

:root {
    --bg-color: #0b0c10;
    --card-bg: rgba(26, 27, 38, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8f8f2;
    --text-secondary: #a9b1d6;
    --accent-cyan: #8be9fd;
    --accent-purple: #bd93f9;
    --accent-pink: #ff79c6;
    --accent-green: #50fa7b;
    --font-sans: 'Outfit', 'Noto Sans KR', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    --glow-shadow: 0 0 20px rgba(139, 233, 253, 0.2);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Retro Matrix Green Mode override */
body.retro-mode {
    --bg-color: #050805;
    --card-bg: rgba(10, 20, 10, 0.85);
    --card-border: rgba(80, 250, 123, 0.2);
    --text-primary: #50fa7b;
    --text-secondary: #30cf5b;
    --accent-cyan: #50fa7b;
    --accent-purple: #50fa7b;
    --accent-pink: #50fa7b;
    --accent-green: #50fa7b;
    --glow-shadow: 0 0 25px rgba(80, 250, 123, 0.45);
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: background-color 0.8s ease;
}

/* Grid Overlay & Glow Orbs */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    pointer-events: none;
}

body.retro-mode .grid-overlay {
    background-image: 
        linear-gradient(rgba(80, 250, 123, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(80, 250, 123, 0.03) 1px, transparent 1px);
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.35;
    transition: var(--transition);
}

.orb-1 {
    top: -10%;
    right: 5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    animation: floatOrb1 25s infinite alternate ease-in-out;
}

.orb-2 {
    bottom: -10%;
    left: 10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
    animation: floatOrb2 30s infinite alternate ease-in-out;
}

@keyframes floatOrb1 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-100px, 80px) scale(1.2); }
}

@keyframes floatOrb2 {
    0% { transform: translate(0, 0) scale(1.1); }
    100% { transform: translate(120px, -60px) scale(0.9); }
}

/* Header styling */
header {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.logo-bracket {
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    text-shadow: var(--glow-shadow);
}

.logo-text {
    background: linear-gradient(135deg, #fff 30%, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: var(--transition);
}

body.retro-mode .logo-text {
    background: none;
    -webkit-text-fill-color: var(--accent-green);
    text-shadow: var(--glow-shadow);
}

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    transition: var(--transition);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-shadow);
    transform: translateY(-2px);
}

body.retro-mode .nav-link:hover {
    border-color: var(--accent-green);
}

.theme-btn {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    transition: var(--transition);
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-purple);
    box-shadow: 0 0 15px rgba(189, 147, 249, 0.3);
    transform: translateY(-2px);
}

/* Container & Layout */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 4rem 3rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    flex-grow: 1;
}

/* Left Side: Intro */
.intro-section {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.status-badge {
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.9rem;
    border-radius: 50px;
    background: rgba(80, 250, 123, 0.1);
    border: 1px solid rgba(80, 250, 123, 0.25);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 14px var(--accent-green); }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--accent-green);
    font-family: var(--font-mono);
}

.main-title {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.title-sub {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(189, 147, 249, 0.2);
}

.title-main {
    font-size: 4.8rem;
    font-weight: 900;
    letter-spacing: -2px;
    background: linear-gradient(to right, #ffffff 40%, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.retro-mode .title-main {
    background: none;
    -webkit-text-fill-color: var(--accent-green);
    text-shadow: var(--glow-shadow);
}

.subtitle {
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    font-size: 2rem;
    font-weight: 600;
    min-height: 2.5rem;
    text-shadow: var(--glow-shadow);
}

.cursor {
    animation: blink 0.8s infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 580px;
    word-break: keep-all;
}

/* Dashboard Card (Glassmorphism & Terminal vibe) */
.dashboard-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    transition: var(--transition);
}

.dashboard-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

body.retro-mode .dashboard-card:hover {
    border-color: var(--accent-green);
    box-shadow: var(--glow-shadow);
}

.card-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--card-border);
    padding: 0.8rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.window-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background-color: #ff5555; }
.dot.yellow { background-color: #ffb86c; }
.dot.green { background-color: #50fa7b; }

.card-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.stat-value {
    font-size: 1.05rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.text-glow {
    color: var(--accent-cyan);
    text-shadow: 0 0 8px rgba(139, 233, 253, 0.3);
}

body.retro-mode .text-glow {
    color: var(--accent-green);
    text-shadow: 0 0 8px rgba(80, 250, 123, 0.4);
}

.terminal-command {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    display: flex;
    gap: 0.5rem;
}

.terminal-command .prompt {
    color: var(--accent-pink);
}

.terminal-command .cmd-run {
    color: var(--text-primary);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 1.2rem;
    margin-top: 0.5rem;
}

.primary-btn {
    position: relative;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    color: #fff;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    overflow: hidden;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(139, 233, 253, 0.3);
    transition: var(--transition);
}

body.retro-mode .primary-btn {
    background: none;
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    box-shadow: var(--glow-shadow);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 233, 253, 0.45);
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: var(--transition);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

body.retro-mode .secondary-btn {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Right Side: 2.5D Room */
.room-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.room-wrapper {
    perspective: 1500px;
    width: 100%;
    max-width: 550px;
    aspect-ratio: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.room-perspective {
    width: 90%;
    height: 90%;
    position: relative;
    transform-style: preserve-3d;
    transform: rotateX(var(--rotate-x, 15deg)) rotateY(var(--rotate-y, -20deg));
    transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

.isometric-room-card {
    width: 100%;
    height: 100%;
    background: rgba(15, 18, 30, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.4s ease;
}

body.retro-mode .isometric-room-card {
    border-color: var(--accent-green);
}

.room-image {
    width: 110%;
    height: 110%;
    object-fit: cover;
    pointer-events: none;
    filter: drop-shadow(0 15px 25px rgba(0,0,0,0.6));
    transition: filter 0.8s ease;
}

body.retro-mode .room-image {
    filter: sepia(1) hue-rotate(80deg) brightness(0.9) contrast(1.2);
}

/* Floor Shadow under perspective */
.room-shadow {
    position: absolute;
    bottom: -5%;
    left: 10%;
    width: 80%;
    height: 20px;
    background: rgba(0, 0, 0, 0.4);
    filter: blur(25px);
    border-radius: 50%;
    transform: translateZ(-50px);
}

/* Screen glow effect */
.screen-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(139, 233, 253, 0.12) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
    animation: screenPulse 6s infinite alternate ease-in-out;
}

@keyframes screenPulse {
    0% { opacity: 0.4; }
    100% { opacity: 0.9; }
}

/* Room Hotspots */
.hotspot {
    position: absolute;
    width: 24px;
    height: 24px;
    cursor: pointer;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pin-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-pink);
    border: 2px solid #fff;
    box-shadow: 0 0 10px var(--accent-pink);
    transition: var(--transition);
}

.pin-pulse {
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2px solid var(--accent-pink);
    border-radius: 50%;
    opacity: 0;
    animation: pinPulse 2s infinite ease-out;
}

.hotspot:hover .pin-dot {
    background-color: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan);
    transform: scale(1.3);
}

.hotspot:hover .pin-pulse {
    border-color: var(--accent-cyan);
}

@keyframes pinPulse {
    0% { transform: scale(0.6); opacity: 0.8; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* Position Hotspots based on the 2.5D Room visual targets */
.pin-monitor {
    top: 48%;
    left: 45%;
}

.pin-bed {
    top: 60%;
    left: 70%;
}

.pin-shelf {
    top: 32%;
    left: 65%;
}

.pin-window {
    top: 38%;
    left: 30%;
}

/* Tooltip display styling */
.hotspot-tooltip {
    margin-top: 1.5rem;
    background: rgba(15, 18, 30, 0.85);
    border: 1px solid var(--card-border);
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
    text-align: center;
    max-width: 400px;
    transition: var(--transition);
    border-color: var(--accent-purple);
}

body.retro-mode .hotspot-tooltip {
    border-color: var(--accent-green);
    color: var(--accent-green);
    box-shadow: var(--glow-shadow);
}

/* Custom Alert for Interactions */
.custom-alert {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: rgba(26, 27, 38, 0.95);
    border: 1px solid var(--accent-purple);
    padding: 1rem 2rem;
    border-radius: 12px;
    z-index: 100;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
}

.custom-alert.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

body.retro-mode .custom-alert {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: rgba(5, 8, 5, 0.95);
    box-shadow: var(--glow-shadow);
}

.alert-emoji {
    font-size: 1.2rem;
}

.alert-msg {
    font-weight: 600;
    font-size: 0.95rem;
}

/* Footer style */
footer {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 4rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    z-index: 10;
}

footer p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 1rem 2rem 3rem;
    }
    
    header, footer {
        padding: 2rem;
    }
    
    .intro-section {
        align-items: center;
        text-align: center;
    }
    
    .status-badge {
        align-self: center;
    }
    
    .description {
        margin: 0 auto;
    }
    
    .dashboard-card {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
        text-align: left;
    }
    
    .action-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1.5rem 2rem;
    }
    
    .title-main {
        font-size: 3.2rem;
    }
    
    .subtitle {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }
    
    .primary-btn, .secondary-btn {
        width: 100%;
    }
}

@media (max-width: 550px) {
    header {
        flex-direction: column;
        gap: 1.2rem;
        padding: 1.5rem 1rem;
    }
    
    nav {
        gap: 0.8rem;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-link, .theme-btn {
        font-size: 0.85rem;
        padding: 0.5rem 0.8rem;
        flex-shrink: 0;
        gap: 0.3rem;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .container {
        padding: 1rem 1rem 3rem;
    }
    
    .title-main {
        font-size: 2.6rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .description {
        font-size: 0.95rem;
        line-height: 1.6;
    }
}