/* ==========================================================================
   Design Tokens & Theme Variables
   ========================================================================== */
:root {
    /* Fonts */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

    /* Common Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.2s ease;

    /* Theme Variables - Default to Dark Theme */
    --bg-page: radial-gradient(circle at 10% 20%, rgb(90, 92, 94) 0%, rgb(32, 33, 36) 90%);
    --bg-card-left: #434343;
    --bg-card-right: #515151;
    --card-border: rgba(255, 255, 255, 0.05);
    --card-divider: rgba(255, 255, 255, 0.08);
    
    --text-title: #ffffff;
    --text-desc: #c8c8c8;
    --text-muted: #a0a0a0;
    
    --accent-cyan: #3fc5cf;
    --accent-cyan-glow: rgba(63, 197, 207, 0.4);
    
    --sphere-bg: #1a1a1a;
    --sphere-number: rgba(255, 255, 255, 0.04);
    --sphere-glow: rgba(0, 0, 0, 0.4);
    
    --orbit-line: rgba(255, 255, 255, 0.08);
    --badge-bg: #2b2b2b;
    --badge-text: #ffffff;
    --badge-border: rgba(255, 255, 255, 0.1);
    --badge-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    
    --btn-toggle-bg: rgba(255, 255, 255, 0.05);
    --btn-toggle-border: rgba(255, 255, 255, 0.1);
    --btn-toggle-hover: rgba(255, 255, 255, 0.15);
    --btn-toggle-color: #ffffff;
    
    --card-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);

    --portfolio-bg: rgba(255, 255, 255, 0.02);
    --portfolio-border: rgba(255, 255, 255, 0.05);
    --portfolio-hover-bg: rgba(255, 255, 255, 0.06);
}

/* Dark Theme overrides (explicit class match) */
.dark-theme {
    --bg-page: radial-gradient(circle at 10% 20%, rgb(90, 92, 94) 0%, rgb(32, 33, 36) 90%);
    --bg-card-left: #434343;
    --bg-card-right: #515151;
    --card-border: rgba(255, 255, 255, 0.05);
    --card-divider: rgba(255, 255, 255, 0.08);
    
    --text-title: #ffffff;
    --text-desc: #c8c8c8;
    --text-muted: #a0a0a0;
    
    --accent-cyan: #3fc5cf;
    --accent-cyan-glow: rgba(63, 197, 207, 0.4);
    
    --sphere-bg: #1a1a1a;
    --sphere-number: rgba(255, 255, 255, 0.04);
    --sphere-glow: rgba(0, 0, 0, 0.4);
    
    --orbit-line: rgba(255, 255, 255, 0.08);
    --badge-bg: #2b2b2b;
    --badge-text: #ffffff;
    --badge-border: rgba(255, 255, 255, 0.1);
    --badge-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    
    --btn-toggle-bg: rgba(255, 255, 255, 0.05);
    --btn-toggle-border: rgba(255, 255, 255, 0.1);
    --btn-toggle-hover: rgba(255, 255, 255, 0.15);
    --btn-toggle-color: #ffffff;
    
    --card-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);

    --portfolio-bg: rgba(255, 255, 255, 0.02);
    --portfolio-border: rgba(255, 255, 255, 0.05);
    --portfolio-hover-bg: rgba(255, 255, 255, 0.06);
}

/* Light Theme Variables */
.light-theme {
    --bg-page: radial-gradient(circle at 10% 20%, rgb(240, 242, 245) 0%, rgb(215, 219, 224) 90%);
    --bg-card-left: #ffffff;
    --bg-card-right: #f5f6f8;
    --card-border: rgba(0, 0, 0, 0.06);
    --card-divider: rgba(0, 0, 0, 0.06);
    
    --text-title: #1e2022;
    --text-desc: #50555c;
    --text-muted: #7d8490;
    
    --accent-cyan: #199fa8;
    --accent-cyan-glow: rgba(25, 159, 168, 0.3);
    
    --sphere-bg: #ffffff;
    --sphere-number: rgba(0, 0, 0, 0.03);
    --sphere-glow: rgba(0, 0, 0, 0.08);
    
    --orbit-line: rgba(0, 0, 0, 0.08);
    --badge-bg: #ffffff;
    --badge-text: #1e2022;
    --badge-border: rgba(0, 0, 0, 0.08);
    --badge-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    
    --btn-toggle-bg: rgba(0, 0, 0, 0.03);
    --btn-toggle-border: rgba(0, 0, 0, 0.08);
    --btn-toggle-hover: rgba(0, 0, 0, 0.08);
    --btn-toggle-color: #1e2022;
    
    --card-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);

    --portfolio-bg: rgba(0, 0, 0, 0.02);
    --portfolio-border: rgba(0, 0, 0, 0.05);
    --portfolio-hover-bg: rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: var(--font-body);
    background: var(--bg-page);
    color: var(--text-desc);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    transition: var(--transition-smooth);
    padding: 20px;
}

/* ==========================================================================
   Layout Wrapper & Card Container
   ========================================================================== */
.page-wrapper {
    width: 100%;
    max-width: 960px;
    display: flex;
    flex-direction: column;
    gap: 48px;
    align-items: center;
    padding: 40px 20px;
}

.card-container {
    width: 100%;
    max-width: 960px;
    min-height: 560px;
    background: transparent;
    border-radius: 28px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--card-border);
    transition: var(--transition-smooth);
    position: relative;
}

/* ==========================================================================
   Left Panel (Content)
   ========================================================================== */
.content-panel {
    background: var(--bg-card-left);
    padding: 64px 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.logo-container {
    margin-bottom: 32px;
}

.brand-logo {
    height: 42px;
    width: auto;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.15));
    transition: var(--transition-smooth);
}

.launch-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 40px;
}

.tag-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-cyan-glow);
}

.tag-text {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.main-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 400;
    line-height: 1.15;
    color: var(--text-title);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
    transition: var(--transition-smooth);
}

.main-desc {
    font-size: 1.05rem;
    font-weight: 300;
    line-height: 1.65;
    color: var(--text-desc);
    margin-bottom: 48px;
    max-width: 400px;
    transition: var(--transition-smooth);
}

.panel-footer {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.footer-dot {
    color: var(--accent-cyan);
    opacity: 0.8;
}

/* ==========================================================================
   Right Panel (Visual)
   ========================================================================== */
.visual-panel {
    background: var(--bg-card-right);
    border-left: 1px solid var(--card-divider);
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    transition: var(--transition-smooth);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    position: absolute;
    top: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--btn-toggle-bg);
    border: 1px solid var(--btn-toggle-border);
    color: var(--btn-toggle-color);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-fast);
    z-index: 10;
}

.theme-toggle-btn:hover {
    background: var(--btn-toggle-hover);
    transform: scale(1.05);
}

.theme-toggle-btn svg {
    width: 20px;
    height: 20px;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Hide inactive icons based on theme class (Default to showing Sun / hiding Moon) */
.moon-icon {
    display: none;
}
.sun-icon {
    display: block;
}

.dark-theme .moon-icon {
    display: none;
}
.dark-theme .sun-icon {
    display: block;
}

.light-theme .sun-icon {
    display: none;
}
.light-theme .moon-icon {
    display: block;
}

/* ==========================================================================
   Orbit Graphic System
   ========================================================================== */
.orbit-system-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.orbit-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Outer Orbit Line */
.orbit-line-outer {
    position: absolute;
    width: 300px;
    height: 300px;
    border: 1px solid var(--orbit-line);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none; /* Let hovers pass to container */
    transition: var(--transition-smooth);
}

/* Rotating Harness */
.rotating-harness {
    position: absolute;
    width: 100%;
    height: 100%;
    animation: orbit-spin 40s linear infinite;
    pointer-events: auto; /* Allow interactions */
}

/* Pause animations when hovering anywhere in the right panel */
.visual-panel:hover .rotating-harness {
    animation-play-state: paused;
}

/* Orbiting Badge (SOON) */
.orbiting-badge-soon {
    position: absolute;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    color: var(--badge-text);
    box-shadow: var(--badge-shadow);
    display: flex;
    justify-content: center;
    align-items: center;
    top: 15px;
    right: 15px;
    transition: var(--transition-smooth);
    animation: self-correct-spin 40s linear infinite;
    cursor: pointer;
}

/* Interactive touch on hover */
.orbiting-badge-soon:hover {
    transform: scale(1.15);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan-glow), var(--badge-shadow);
}

.badge-text {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    font-family: var(--font-body);
}

/* Orbiting Dot (Cyan) */
.orbiting-dot-cyan {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--accent-cyan);
    box-shadow: 0 0 12px var(--accent-cyan-glow);
    top: 50%;
    left: -7px;
    transform: translateY(-50%);
    transition: var(--transition-smooth);
}

/* Orbiting Ring Dot (Extra Accent) */
.orbiting-ring-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 6px var(--accent-cyan-glow);
    top: 50%;
    right: -9px;
    transform: translateY(-50%);
    background: var(--bg-card-right);
    transition: var(--transition-smooth);
}

/* Central Sphere */
.central-sphere {
    position: absolute;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: var(--sphere-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: 0 15px 35px var(--sphere-glow);
    z-index: 2;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.sphere-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.sphere-number {
    font-size: 5rem;
    font-weight: 700;
    color: var(--sphere-number);
    line-height: 1;
    user-select: none;
    margin-bottom: -15px;
    transition: var(--transition-smooth);
}

.sphere-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    position: relative;
    z-index: 3;
    transition: var(--transition-smooth);
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes orbit-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Counter-rotates child element to keep text upright */
@keyframes self-correct-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(-360deg);
    }
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 900px) {
    .card-container {
        grid-template-columns: 1fr;
        max-width: 500px;
        min-height: auto;
    }
    
    .content-panel {
        padding: 50px 40px;
    }
    
    .visual-panel {
        padding: 60px 40px;
        border-left: none;
        border-top: 1px solid var(--card-divider);
    }
    
    .main-title {
        font-size: 3.2rem;
    }
    
    .theme-toggle-btn {
        top: 24px;
        right: 24px;
    }
}

@media (max-width: 500px) {
    body {
        padding: 10px;
    }
    
    .card-container {
        border-radius: 20px;
    }
    
    .content-panel, .visual-panel {
        padding: 40px 24px;
    }
    
    .main-title {
        font-size: 2.8rem;
    }
    
    .orbit-system-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .orbit-line-outer {
        width: 260px;
        height: 260px;
    }
    
    .central-sphere {
        width: 150px;
        height: 150px;
    }
    
    .sphere-number {
        font-size: 4rem;
    }
    
    .orbiting-badge-soon {
        width: 68px;
        height: 68px;
        top: 10px;
        right: 10px;
    }
}

/* ==========================================================================
   Portfolio Section
   ========================================================================== */
.portfolio-section {
    width: 100%;
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.portfolio-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-bottom: 24px;
    text-transform: uppercase;
    transition: var(--transition-smooth);
}

.portfolio-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.portfolio-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 16px 20px;
    border-radius: 16px;
    background: var(--portfolio-bg);
    border: 1px solid var(--portfolio-border);
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.item-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 4px;
    letter-spacing: 0.02em;
    transition: var(--transition-smooth);
}

.item-url {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    font-weight: 500;
    letter-spacing: 0.02em;
    opacity: 0.85;
    transition: var(--transition-smooth);
}

/* Hover & active styling */
.portfolio-item:hover {
    transform: translateY(-4px);
    background: var(--portfolio-hover-bg);
    border-color: var(--accent-cyan);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 0 10px var(--accent-cyan-glow);
}

/* Responsive styling for portfolio section */
@media (max-width: 900px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
}

@media (max-width: 500px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .portfolio-item {
        padding: 14px 18px;
    }
}