/**
 * Monochromatic Kinetic Linkage Portfolio Design System
 * Visual Reference Theme: Dark Gray / Pure Obsidian with Crisp White Constellations
 * High Contrast, Layered Shadows, Multi-OS Parity
 */

:root {
    --bg-void: #050608;
    --bg-overlay: rgba(5, 6, 8, 0.82);
    --surface-obsidian: rgba(16, 20, 28, 0.90);
    --surface-obsidian-bright: rgba(24, 30, 42, 0.96);
    --surface-card: rgba(18, 22, 32, 0.85);
    --border-hairline: rgba(255, 255, 255, 0.12);
    --border-hairline-bright: rgba(255, 255, 255, 0.25);
    --text-primary: #ffffff;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --accent-monochrome: #ffffff;
    --accent-silver: #94a3b8;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Reset & Viewport Lock */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    height: 100%;
    height: 100dvh;
    overflow: hidden;
    background-color: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
    -webkit-user-select: none;
}

/* 1. Kinetic Canvas Fullscreen Layer */
#kinetic-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    z-index: 1;
    display: block;
    pointer-events: auto;
    touch-action: none;
    background: radial-gradient(circle at 50% 50%, #0d1118 0%, #040507 100%);
}

/* 2. Top Navigation & Identity Bar */
.top-nav {
    position: fixed;
    top: max(16px, env(safe-area-inset-top));
    left: max(16px, env(safe-area-inset-left));
    right: max(16px, env(safe-area-inset-right));
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    pointer-events: none;
}

.brand-pill {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 8px 18px 8px 10px;
    background: var(--surface-obsidian);
    border: 1px solid var(--border-hairline);
    border-radius: 9999px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.65), 0 0 1px rgba(255, 255, 255, 0.15);
    text-decoration: none;
    color: inherit;
    transition: all 0.22s ease;
}

.brand-pill:hover {
    border-color: var(--border-hairline-bright);
    background: var(--surface-obsidian-bright);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.8), 0 0 15px rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.brand-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.25);
}

.brand-info {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.brand-status-dot {
    width: 6.5px;
    height: 6.5px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
    display: inline-block;
}

.brand-handle {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

/* 3. Floating HUD Pill Tooltip */
#kinetic-hud-tooltip {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 40;
    opacity: 0;
    will-change: transform, opacity;
    transition: opacity 0.16s cubic-bezier(0.16, 1, 0.3, 1);
}

.hud-pill {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 16px;
    background: rgba(14, 18, 26, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 9999px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.85), 0 0 18px rgba(255, 255, 255, 0.10);
    white-space: nowrap;
}

.hud-pip {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
    flex-shrink: 0;
}

.hud-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.hud-sub {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    padding-left: 6px;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
}

/* 4. Tactile Project Inspector Modal Overlay */
#kinetic-project-modal {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.28s ease;
}

#kinetic-project-modal.modal-open {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
}

#kinetic-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 3, 5, 0.82);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
}

#kinetic-modal-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 560px;
    max-height: 86dvh;
    overflow-y: auto;
    background: rgba(14, 18, 26, 0.96);
    border: 1px solid var(--border-hairline-bright);
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.85), 0 0 1px rgba(255, 255, 255, 0.25);
    transform: scale(0.92) translateY(16px);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

#kinetic-project-modal.modal-open #kinetic-modal-content {
    transform: scale(1) translateY(0);
}

/* Modal Inner Elements */
.modal-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.modal-card-identity {
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-card-pip {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
    flex-shrink: 0;
}

.modal-card-title {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

.modal-card-badge {
    display: inline-block;
    margin-top: 3px;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-card-close {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-hairline);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.18s ease;
    flex-shrink: 0;
}

.modal-card-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    transform: rotate(90deg);
}

.modal-card-tagline {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-hairline);
    padding-bottom: 16px;
}

.modal-card-highlights {
    display: flex;
    flex-direction: column;
    gap: 11px;
    margin-bottom: 22px;
}

.modal-highlight-row {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    font-size: 13.5px;
    color: var(--text-primary);
    line-height: 1.45;
}

.modal-highlight-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
    margin-top: 6px;
    flex-shrink: 0;
}

.modal-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 24px;
}

.tech-chip {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 5px 11px;
    border-radius: 6px;
    letter-spacing: 0.02em;
}

.modal-action-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-action-primary, .btn-action-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 13.5px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    min-height: 44px;
}

.btn-action-primary {
    background: #ffffff;
    color: #050608;
    flex: 1 1 180px;
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.25);
}

.btn-action-primary:hover {
    background: #f1f5f9;
    box-shadow: 0 6px 24px rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}

.btn-action-secondary {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--border-hairline-bright);
    color: var(--text-primary);
    flex: 1 1 140px;
}

.btn-action-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}

/* 5. Creator Profile & Direct Contact Hub Styles */
.modal-profile-hero {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 18px;
}

.profile-avatar-large {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #ffffff;
    box-shadow: 0 0 18px rgba(255, 255, 255, 0.25);
    flex-shrink: 0;
}

.profile-hero-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.profile-name-lg {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

.profile-handle-lg {
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.profile-badge-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.profile-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 11px;
    color: #e2e8f0;
}

.profile-status-dot-green {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
}

.profile-bio-box {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-hairline);
}

.contact-action-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.btn-vcard {
    background: #ffffff;
    color: #050608;
    font-weight: 600;
    padding: 11px 18px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 1 1 180px;
    justify-content: center;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 13.5px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 18px rgba(255, 255, 255, 0.22);
}

.btn-vcard:hover {
    background: #f1f5f9;
    box-shadow: 0 6px 24px rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.btn-copy-email {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-hairline-bright);
    color: var(--text-primary);
    font-weight: 600;
    padding: 11px 18px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 1 1 140px;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    font-size: 13.5px;
    transition: all 0.2s ease;
}

.btn-copy-email:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}

.profile-section-title {
    font-size: 11px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.profile-channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 9px;
    margin-bottom: 24px;
}

.channel-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-hairline);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.channel-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.channel-left {
    display: flex;
    align-items: center;
    gap: 11px;
}

.channel-icon {
    font-size: 17px;
    color: #ffffff;
    width: 22px;
    text-align: center;
}

.channel-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.channel-handle {
    font-size: 10.5px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.channel-action {
    font-size: 11px;
    color: #ffffff;
    opacity: 0.65;
    font-family: var(--font-mono);
}

.profile-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}

.profile-proj-chip {
    display: flex;
    flex-direction: column;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-hairline);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    color: inherit;
}

.profile-proj-chip:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}

.proj-chip-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    margin-bottom: 4px;
    color: #ffffff;
}

.proj-chip-title {
    font-size: 12.5px;
    font-weight: 600;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.proj-chip-sub {
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

/* 6. Interaction Toast Feedback */
#kinetic-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #ffffff;
    color: #050608;
    font-weight: 600;
    font-size: 13px;
    padding: 8px 20px;
    border-radius: 9999px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    z-index: 100;
    pointer-events: none;
    opacity: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

#kinetic-toast.toast-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* 7. Universal Responsive Adaptations */
@media (max-width: 640px) {
    .brand-pill {
        padding: 6px 14px 6px 8px;
        gap: 8px;
    }

    .brand-avatar {
        width: 28px;
        height: 28px;
    }

    .brand-title {
        font-size: 12.5px;
    }

    .brand-handle {
        font-size: 10px;
    }

    #kinetic-modal-content {
        padding: 20px;
        border-radius: 16px;
    }

    .modal-card-title {
        font-size: 18px;
    }

    .modal-action-row {
        flex-direction: column;
    }

    .btn-action-primary, .btn-action-secondary {
        width: 100%;
        flex: 1 1 auto;
    }

    .contact-action-bar {
        flex-direction: column;
    }

    .btn-vcard, .btn-copy-email {
        width: 100%;
        flex: 1 1 auto;
    }

    .profile-channels-grid {
        grid-template-columns: 1fr;
    }

    .profile-projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}