/* ==========================================================================
   PREMIUM DEVELOPER PORTFOLIO — ARCHITECTURAL EDITORIAL DESIGN SYSTEM
   ========================================================================== */

:root {
    --bg-primary: #09090B;
    --bg-secondary: #121215;
    --bg-tertiary: #18181C;
    --bg-card: rgba(20, 20, 25, 0.72);
    --bg-card-solid: #131317;
    --bg-glass: rgba(12, 12, 16, 0.78);
    --text-primary: #FAFAFA;
    --text-secondary: #A1A1AA;
    --text-muted: #71717A;
    --accent-primary: #6366F1;
    --accent-secondary: #818CF8;
    --accent-emerald: #10B981;
    --border-hairline: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --border-accent: rgba(99, 102, 241, 0.45);
    --spotlight-color: rgba(99, 102, 241, 0.13);
    --shadow-elevated: 0 24px 60px -15px rgba(0, 0, 0, 0.7);
    --grid-line: rgba(255, 255, 255, 0.035);
    --invert-bg: #FAFAFA;
    --invert-text: #09090B;
}

[data-theme="light"] {
    --bg-primary: #FAFAFA;
    --bg-secondary: #F4F4F5;
    --bg-tertiary: #E4E4E7;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-solid: #FFFFFF;
    --bg-glass: rgba(250, 250, 250, 0.85);
    --text-primary: #09090B;
    --text-secondary: #52525B;
    --text-muted: #71717A;
    --accent-primary: #4F46E5;
    --accent-secondary: #6366F1;
    --accent-emerald: #059669;
    --border-hairline: rgba(9, 9, 11, 0.09);
    --border-strong: rgba(9, 9, 11, 0.18);
    --border-accent: rgba(79, 70, 229, 0.45);
    --spotlight-color: rgba(79, 70, 229, 0.08);
    --shadow-elevated: 0 20px 50px -15px rgba(9, 9, 11, 0.1);
    --grid-line: rgba(9, 9, 11, 0.04);
    --invert-bg: #09090B;
    --invert-text: #FAFAFA;
}

/* Base & Typography */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 6rem;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color 0.35s ease, color 0.35s ease;
    selection-background-color: #6366F1;
}

::selection {
    background: rgba(99, 102, 241, 0.35);
    color: #FAFAFA;
}

.font-display {
    font-family: 'Space Grotesk', sans-serif;
    letter-spacing: -0.03em;
}

.font-mono-tech {
    font-family: 'JetBrains Mono', monospace;
}

/* Architectural Background Grid & Ambient Spotlights */
.bg-architectural-grid {
    background-size: 38px 38px;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
}

.ambient-orb-1 {
    position: fixed;
    top: 8%;
    left: -16rem;
    width: 44rem;
    height: 44rem;
    border-radius: 9999px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.085) 0%, rgba(255, 255, 255, 0.025) 42%, transparent 70%);
    filter: blur(65px);
    pointer-events: none;
    z-index: 0;
}

.ambient-orb-2 {
    position: fixed;
    bottom: -18rem;
    right: -12rem;
    width: 38rem;
    height: 38rem;
    border-radius: 9999px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.035) 0%, transparent 68%);
    filter: blur(65px);
    pointer-events: none;
    z-index: 0;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 35px) scale(1.08); }
}

/* Page Loading Preloader */
#page-preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: #09090B;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

#page-preloader.loaded {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-2%);
    pointer-events: none;
}

.preloader-bar-track {
    width: 100%;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
    position: relative;
}

.preloader-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #6366F1, #10B981, #FAFAFA);
    transition: width 0.15s ease-out;
}

/* Custom Magnetic Cursor (Desktop Only) */
@media (pointer: fine) {
    .cursor-dot {
        position: fixed;
        top: 0;
        left: 0;
        width: 8px;
        height: 8px;
        background: #FAFAFA;
        border-radius: 50%;
        pointer-events: none;
        z-index: 9990;
        transform: translate(-50%, -50%);
        transition: width 0.2s ease, height 0.2s ease, background-color 0.2s ease;
        mix-blend-mode: difference;
    }

    .cursor-ring {
        position: fixed;
        top: 0;
        left: 0;
        width: 36px;
        height: 36px;
        border: 1px solid rgba(250, 250, 250, 0.4);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9989;
        transform: translate(-50%, -50%);
        transition: width 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                    height 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                    border-color 0.25s ease,
                    background-color 0.25s ease;
    }

    body.cursor-hover .cursor-dot {
        width: 12px;
        height: 12px;
        background: #6366F1;
    }

    body.cursor-hover .cursor-ring {
        width: 54px;
        height: 54px;
        border-color: rgba(99, 102, 241, 0.7);
        background-color: rgba(99, 102, 241, 0.08);
    }
}

@media (pointer: coarse) {
    .cursor-dot, .cursor-ring {
        display: none !important;
    }
}

/* Sticky Floating Glassmorphic Navbar */
.navbar-shell {
    position: fixed;
    top: 1.15rem;
    left: 0;
    right: 0;
    z-index: 100;
    transition: top 0.3s ease, padding 0.3s ease;
}

.navbar-shell.scrolled {
    top: 0.65rem;
}

.navbar-pill {
    background: var(--bg-glass);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border-hairline);
    box-shadow: 0 12px 36px -8px rgba(0, 0, 0, 0.35);
    transition: border-color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar-shell.scrolled .navbar-pill {
    border-color: var(--border-strong);
}

.nav-link-item {
    position: relative;
    font-family: 'JetBrains Mono', monospace;
    color: #9ca3af;
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    padding: 0.35rem 0;
    transition: color 0.25s ease;
}

.nav-link-item:hover {
    color: #ffffff;
}

.nav-link-item.active {
    color: #ffffff;
    background: transparent;
    font-weight: 600;
}

.nav-link-item.active::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: #ffffff;
    border-radius: 9999px;
}

/* Editorial Cards & Interactive Mouse Spotlight */
.editorial-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-hairline);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.35s ease,
                box-shadow 0.35s ease;
}

.editorial-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        550px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        var(--spotlight-color),
        transparent 40%
    );
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
    z-index: 1;
}

.editorial-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.editorial-card:hover::before {
    opacity: 1;
}

.editorial-card > * {
    position: relative;
    z-index: 2;
}

/* Contrast Inverted Card (Light Accent Card in Dark Mode, Dark Card in Light Mode) */
.contrast-card {
    background: var(--invert-bg);
    color: var(--invert-text);
    border-radius: 16px;
    border: 1px solid var(--border-strong);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease;
}

.contrast-card:hover {
    transform: translateY(-4px);
}

/* Project Thumbnail Zoom Effect */
.project-thumb-wrap {
    overflow: hidden;
    position: relative;
}

.project-thumb-inner {
    transition: transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.editorial-card:hover .project-thumb-inner {
    transform: scale(1.045);
}

/* Animated Gradient Text & Borders */
.text-gradient-editorial {
    background: linear-gradient(135deg, var(--text-primary) 20%, #818CF8 65%, #34D399 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.73rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid var(--border-hairline);
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* Buttons */
.btn-editorial-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.65rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.9rem;
    background: var(--invert-bg);
    color: var(--invert-text);
    border: 1px solid transparent;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.25s ease,
                opacity 0.25s ease;
    cursor: pointer;
}

.btn-editorial-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px -6px rgba(99, 102, 241, 0.4);
}

.btn-editorial-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.65rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.9rem;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                background-color 0.25s ease,
                border-color 0.25s ease;
    cursor: pointer;
}

.btn-editorial-secondary:hover {
    transform: translateY(-2px);
    background: var(--bg-secondary);
    border-color: var(--text-primary);
}

/* Hero Extended Brutalist Display Heading */
.hero-display-extended {
    font-family: 'Archivo Black', 'Syne', 'Space Grotesk', sans-serif;
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 0.94;
    transform: scaleX(1.36);
    transform-origin: left center;
}

/* Typing Caret Blink */
.typing-caret {
    display: inline-block;
    width: 2px;
    height: 1.15em;
    background-color: #6366F1;
    margin-left: 4px;
    vertical-align: middle;
    animation: caretBlink 0.9s step-end infinite;
}

.typing-underscore {
    display: inline-block;
    color: #71717a;
    margin-left: 4px;
    animation: caretBlink 0.95s step-end infinite;
}

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

/* Floating Architectural Badges in Hero */
.floating-badge-slow {
    animation: floatSlow 5.5s ease-in-out infinite;
}

.floating-badge-delayed {
    animation: floatSlow 6.5s ease-in-out 1.5s infinite;
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-9px); }
}

/* Scroll Reveal Animations */
.reveal-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

/* Filter Pills */
.filter-tab {
    padding: 0.5rem 1.1rem;
    border-radius: 9999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-hairline);
    transition: all 0.25s ease;
    cursor: pointer;
}

.filter-tab:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.filter-tab.active {
    background: var(--invert-bg);
    color: var(--invert-text);
    border-color: var(--invert-bg);
}

/* Form Inputs */
.input-editorial {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-hairline);
    color: var(--text-primary);
    border-radius: 12px;
    padding: 0.875rem 1.1rem;
    font-size: 0.92rem;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
    outline: none;
}

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

.input-editorial:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
    background: var(--bg-card-solid);
}

/* Modal Lightbox */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(5, 5, 8, 0.84);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.modal-panel {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    max-width: 780px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(12px);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.75);
}

.modal-backdrop.open .modal-panel {
    transform: scale(1) translateY(0);
}

/* Back to Top Progress Button */
#back-to-top {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    z-index: 90;
    width: 48px;
    height: 48px;
    border-radius: 9999px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-strong);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: #27272A;
    border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
    background: #3F3F46;
}