/* ============================================
   Adam's Portfolio - Main Stylesheet
   Dark theme, glassmorphism, animated accents
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
    /* Dark theme (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --accent-1: #6366f1;
    --accent-2: #8b5cf6;
    --accent-3: #ec4899;
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-text: linear-gradient(135deg, #6366f1, #ec4899);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-card: rgba(0, 0, 0, 0.03);
    --bg-glass: rgba(255, 255, 255, 0.8);
    --bg-glass-border: rgba(0, 0, 0, 0.06);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #7a7a8a;
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.08);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

body.hide-cursor * {
    cursor: none !important;
}

/* ---------- Scroll Progress Bar ---------- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-accent);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* ---------- Loader Screen ---------- */
.loader-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 56px;
    height: 56px;
    border: 3px solid var(--bg-glass-border);
    border-top-color: var(--accent-1);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

.loader-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ---------- Custom Cursor ---------- */
.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-1);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 10001;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.2s, height 0.2s, background 0.2s;
}

.cursor-dot.hover {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.2);
    border: 2px solid var(--accent-1);
}

.cursor-dot.hidden {
    opacity: 0;
    pointer-events: none;
}

/* ---------- Navbar ---------- */
.navbar-portfolio {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: transparent;
    transition: background var(--transition-base), padding var(--transition-base), box-shadow var(--transition-base);
}

.navbar-portfolio.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.5rem 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .navbar-portfolio.scrolled {
    background: rgba(248, 249, 252, 0.9);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.35rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: color var(--transition-base), background var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary) !important;
    background: var(--bg-glass);
}

/* Theme toggle */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--bg-glass-border);
    background: var(--bg-glass);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base), background var(--transition-base);
}

.theme-toggle:hover {
    background: var(--bg-card);
    transform: rotate(15deg);
}

/* ---------- Side Nav Indicator (sticky) ---------- */
.side-nav-indicator {
    position: fixed;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.side-nav-indicator a {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-glass-border);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.side-nav-indicator a:hover {
    background: var(--accent-1);
    transform: scale(1.2);
}

.side-nav-indicator a.active {
    background: var(--accent-1);
    box-shadow: 0 0 12px var(--accent-1);
}

@media (max-width: 991px) {
    .side-nav-indicator {
        display: none;
    }
}

/* ---------- Hero Section ---------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 0 4rem;
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.hero-shape-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-1);
    top: -100px;
    right: -100px;
    animation: float 15s ease-in-out infinite;
}

.hero-shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-3);
    bottom: -50px;
    left: -50px;
    animation: float 12s ease-in-out infinite reverse;
    animation-delay: -3s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(30px, -30px) scale(1.05);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    min-height: 1.2em;
}

.hero-title .typewriter-cursor {
    display: inline-block;
    width: 4px;
    height: 1em;
    background: var(--accent-1);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 0.8s step-end infinite;
}

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

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.btn-primary-custom {
    padding: 0.9rem 1.8rem;
    background: var(--gradient-accent);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: white;
}

.btn-outline-custom {
    padding: 0.9rem 1.8rem;
    background: transparent;
    border: 2px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 600;
    transition: border-color var(--transition-base), background var(--transition-base), transform var(--transition-base);
}

.btn-outline-custom:hover {
    border-color: var(--accent-1);
    background: var(--bg-glass);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ---------- Section Common ---------- */
section {
    padding: 5rem 0;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 3rem;
}

/* ---------- SVG Wave Separator ---------- */
.wave-separator {
    position: relative;
    left: 0;
    right: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    display: block;
    z-index: 0;
}

.wave-separator svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 48px;
}

.wave-separator .fill-primary {
    fill: var(--bg-primary);
}

.wave-separator.top {
    margin-top: -1px;
}

.wave-separator.bottom {
    transform: rotate(180deg);
    margin-bottom: -1px;
}

/* ---------- About Section ---------- */
.about-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* ---------- Skills Grid ---------- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.25rem;
}

.skill-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.skill-card:hover {
    transform: scale(1.05);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.1);
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.skill-name {
    font-weight: 600;
    font-size: 0.95rem;
}

/* ---------- Certifications Section ---------- */
.cert-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    height: 100%;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.cert-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(99, 102, 241, 0.2);
}

.cert-icon {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.cert-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.cert-issuer {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.cert-year {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ---------- Project Cards (gradient border) ---------- */
.project-card-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: var(--gradient-accent);
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.project-card {
    background: var(--bg-secondary);
    border-radius: calc(var(--radius-lg) - 2px);
    padding: 1.75rem;
    height: 100%;
    border: 1px solid var(--bg-glass-border);
    transition: transform var(--transition-base);
    position: relative;
}

.project-card:hover {
    transform: translateY(-6px);
}

.project-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-card .card-icon.card-icon-img {
    padding: 0;
    overflow: hidden;
}

.project-card .card-icon.card-icon-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card .card-title {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.project-card .card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    background: var(--bg-glass);
    border-radius: 50px;
    color: var(--text-secondary);
}

/* ---------- Stats / Counters ---------- */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ---------- Contact Section ---------- */
.contact-card {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(12px);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: background var(--transition-base), transform var(--transition-base);
}

.contact-link:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
    transform: translateX(4px);
}

/* ---------- Footer ---------- */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--bg-glass-border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ---------- Reveal Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- Projects Page ---------- */
.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.filter-btn {
    padding: 0.6rem 1.25rem;
    border-radius: 50px;
    border: 1px solid var(--bg-glass-border);
    background: var(--bg-glass);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-1);
    border-color: var(--accent-1);
    color: white;
}

/* Project card tilt container */
.project-card-tilt {
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

/* ---------- Project Details Page ---------- */
.detail-hero {
    padding: 6rem 0 3rem;
    text-align: center;
}

.detail-icon {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-xl);
    background: var(--bg-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 1.5rem;
    border: 1px solid var(--bg-glass-border);
}

.detail-icon.detail-icon-img {
    padding: 0;
    overflow: hidden;
}

.detail-icon.detail-icon-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.detail-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0 auto 2rem;
}

.store-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.store-btn:hover {
    background: var(--accent-1);
    border-color: var(--accent-1);
    color: white;
}

/* App Store–style screenshots */
.app-screenshots-wrapper {
    padding: 1rem 0 3rem;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

.app-screenshots {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    justify-content: center;
}

.app-screenshots::-webkit-scrollbar {
    height: 8px;
}

.app-screenshots::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.app-screenshots::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

.app-screenshot-frame {
    flex: 0 0 auto;
    width: 280px;
    max-height: 520px;
    border-radius: 2.25rem;
    overflow: hidden;
    background: var(--bg-secondary);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.07),
        0 10px 30px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(0, 0, 0, 0.05);
    scroll-snap-align: center;
    scroll-snap-stop: always;
}

[data-theme="light"] .app-screenshot-frame {
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.05),
        0 12px 40px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(0, 0, 0, 0.06);
}

.app-screenshot-frame img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 520px;
    object-fit: cover;
    object-position: top;
    vertical-align: top;
}

.app-screenshot-frame.app-screenshot-placeholder {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1rem;
}

@media (max-width: 400px) {
    .app-screenshot-frame {
        width: 240px;
        border-radius: 1.75rem;
    }
}

main#projectDetailContent {
    padding-top: 5rem;
    min-height: 60vh;
}

/* Contribution section */
.contribution-section {
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 2rem;
}

.contribution-section h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
}

.contribution-section p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Website embed – always light so embedded site isn’t forced to dark */
.embed-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 2rem 0;
    /* Force light look regardless of page theme */
    background: #f5f5f7;
    border: 1px solid #e0e0e6;
}

.embed-wrapper iframe {
    width: 100%;
    height: 500px;
    border: none;
    background: #fff;
    color-scheme: light;
}

/* ---------- Page transition ---------- */
.page-transition {
    position: fixed;
    inset: 0;
    background: var(--gradient-accent);
    z-index: 10002;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.page-transition.out {
    transform-origin: right;
    transform: scaleX(1);
}

/* ---------- Responsive ---------- */
/* Particles canvas (hero background) */
.particles-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* Navbar toggler icon color */
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(240, 240, 245, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="light"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26, 26, 46, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }

    .hero {
        padding: 5rem 0 3rem;
    }

    .side-nav-indicator {
        display: none;
    }
}

/* Ripple effect container */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: rippleAnim 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleAnim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}