/* ============================================
   PAAWAN SHAH — PORTFOLIO STYLES
   Premium Apple-inspired dark theme
   ============================================ */

:root {
    /* Apple Dark Mode Palette */
    --bg: #000000;
    --bg-surface: #1d1d1f;
    --bg-card: rgba(45, 45, 45, 0.4);
    --bg-card-hover: rgba(65, 65, 65, 0.5);

    --text: #f5f5f7;
    --text-dim: #86868b;
    --text-bright: #ffffff;

    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --border-active: rgba(255, 255, 255, 0.3);

    /* Apple-esque vibrant but controlled accents */
    --emerald: #30d158;
    --emerald-dim: rgba(48, 209, 88, 0.15);
    --blue: #2997ff;
    --blue-dim: rgba(41, 151, 255, 0.15);
    --purple: #bf5af2;
    --purple-dim: rgba(191, 90, 242, 0.15);
    --amber: #ff9f0a;
    --amber-dim: rgba(255, 159, 10, 0.15);
    --rose: #ff375f;
    --rose-dim: rgba(255, 55, 95, 0.15);
    --teal: #00d4aa;
    --teal-dim: rgba(0, 212, 170, 0.15);

    --radius: 20px;
    --radius-sm: 12px;
    --radius-pill: 99px;

    /* Apple Spring-like bezier */
    --transition: 0.5s cubic-bezier(0.25, 1, 0.3, 1);

    /* Native system fonts */
    --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ==================== LOADER ==================== */
#loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

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

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

.loader-svg {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
}

.loader-track {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 3;
}

.loader-fill {
    fill: none;
    stroke: var(--text-bright);
    stroke-width: 3;
    stroke-dasharray: 251;
    stroke-dashoffset: 251;
    stroke-linecap: round;
    transform-origin: center;
    animation: loader-spin 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite, loader-dash 1.5s ease-in-out infinite;
}

@keyframes loader-spin {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes loader-dash {
    0% {
        stroke-dashoffset: 251;
    }

    50% {
        stroke-dashoffset: 80;
    }

    100% {
        stroke-dashoffset: 251;
    }
}

.loader-name {
    display: block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    color: var(--text-bright);
}

.loader-sub {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 6px;
}

.loader-bar {
    width: 140px;
    height: 3px;
    margin: 20px auto 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.loader-bar-fill {
    height: 100%;
    width: 0;
    background: var(--text-bright);
    border-radius: 3px;
    animation: loader-bar-anim 1.8s cubic-bezier(0.25, 1, 0.3, 1) forwards;
}

@keyframes loader-bar-anim {
    0% {
        width: 0;
    }

    100% {
        width: 100%;
    }
}

/* ==================== NAV DOTS ==================== */
.slide-nav {
    position: fixed;
    right: 28px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.nav-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: none;
    background: var(--border-active);
    cursor: pointer;
    transition: var(--transition);
    transform-origin: center;
}

.nav-dot:hover {
    background: var(--text-bright);
    transform: scale(1.5);
}

.nav-dot.active {
    background: var(--text-bright);
    transform: scale(1.8);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* ==================== SLIDES CONTAINER ==================== */
.slides-container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(60px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.3, 1),
        transform 0.8s cubic-bezier(0.25, 1, 0.3, 1),
        visibility 0.8s;
    will-change: transform, opacity;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.slide.exit-up {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-60px) scale(0.98);
}

.slide-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1040px;
    padding: 60px 40px;
    max-height: 100vh;
    overflow-y: auto;
    scrollbar-width: none;
}

.slide-content::-webkit-scrollbar {
    display: none;
}

/* ==================== BACKGROUND AMBIENCE (Apple Aura) ==================== */
.slide-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.15;
    animation: orb-float 25s ease-in-out infinite alternate;
}

.bg-orb-1 {
    width: 60vw;
    height: 60vh;
    top: -10%;
    left: -10%;
    background: var(--blue);
}

.bg-orb-2 {
    width: 50vw;
    height: 50vh;
    bottom: -10%;
    right: -10%;
    background: var(--purple);
    animation-duration: 30s;
}

.bg-orb-3 {
    width: 40vw;
    height: 40vh;
    top: 30%;
    left: 40%;
    background: var(--emerald);
    animation-duration: 35s;
}

.bg-orb.emerald {
    background: var(--emerald);
}

.bg-orb.blue {
    background: var(--blue);
}

.bg-orb.purple {
    background: var(--purple);
}

.bg-orb.amber {
    background: var(--amber);
}

.bg-orb.rose {
    background: var(--rose);
}

.bg-orb.teal {
    background: var(--teal);
}

@keyframes orb-float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(5%, 5%) scale(1.1);
    }

    100% {
        transform: translate(-5%, -5%) scale(0.9);
    }
}

/* ==================== HUB SLIDE ==================== */
.hub-slide {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.hub-greeting {
    margin-bottom: 40px;
}

.hub-hello {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.hub-name {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 30%, #a1a1a6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hub-tagline {
    font-size: 1.3rem;
    color: var(--text-dim);
    font-weight: 400;
    letter-spacing: -0.01em;
}

.hub-prompt {
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 32px;
    font-weight: 500;
}

/* Hub option pills */
.hub-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
}

.hub-option {
    display: flex;
    align-items: center;
    gap: 18px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 24px;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
    color: var(--text);
    position: relative;
    overflow: hidden;
}

.hub-option:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.option-icon {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.3, 1);
}

.hub-option:hover .option-icon {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.1);
}

.option-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--text-bright);
    stroke-width: 2;
}

/* Subtle tinting on icons based on category (Apple style icons) */
.hub-option[data-color="emerald"] .option-icon svg {
    stroke: var(--emerald);
}

.hub-option[data-color="blue"] .option-icon svg {
    stroke: var(--blue);
}

.hub-option[data-color="purple"] .option-icon svg {
    stroke: var(--purple);
}

.hub-option[data-color="amber"] .option-icon svg {
    stroke: var(--amber);
}

.hub-option[data-color="rose"] .option-icon svg {
    stroke: var(--rose);
}

.hub-option[data-color="teal"] .option-icon svg {
    stroke: var(--teal);
}

.option-text-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.option-label {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-bright);
    letter-spacing: -0.01em;
}

.option-desc {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Focus/selected dimming effect */
.hub-options.has-focus .hub-option:not(:hover) {
    opacity: 0.5;
    filter: blur(2px);
    transform: scale(0.98);
    border-color: transparent;
}

/* ==================== BACK BUTTON ==================== */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    padding: 8px 18px;
    color: var(--text-bright);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 40px;
    transition: var(--transition);
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: translateX(-4px);
}

.back-btn svg {
    width: 16px;
    height: 16px;
}

/* Fix ghosting: only show back button in active slide */
.slide:not(.active) .back-btn {
    opacity: 0;
    pointer-events: none;
}

/* ==================== SECTION HEADER ==================== */
.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-dim);
    font-weight: 400;
    max-width: 600px;
    line-height: 1.5;
    margin-bottom: 48px;
}

/* ==================== FEATURE CARDS ==================== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.card-grid.single-card {
    grid-template-columns: 1fr;
    max-width: 440px;
}

.card-grid.games-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.5;
    flex: 1;
}

.card-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--text-bright);
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    margin-bottom: 16px;
    width: fit-content;
}

.accent-badge {
    background: rgba(255, 255, 255, 0.15);
}

.feature-arrow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-bright);
    margin-top: 24px;
    transition: var(--transition);
}

.arrow-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.feature-card:hover .arrow-icon {
    background: var(--text-bright);
    color: var(--bg);
    transform: translateX(4px);
}

.feature-card-icon {
    margin-bottom: 20px;
}

.feature-card-icon svg {
    stroke: var(--emerald);
    width: 36px;
    height: 36px;
}

/* Game cards */
.game-card {
    text-align: center;
    align-items: center;
    padding: 40px 20px;
}

.game-emoji {
    font-size: 3rem;
    margin-bottom: 16px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.2));
}

.game-card .feature-arrow {
    width: 100%;
    justify-content: center;
    gap: 8px;
}

.game-card:hover .arrow-icon {
    transform: translateX(4px);
}

/* Blog date */
.blog-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 16px;
}

/* ==================== ABOUT SECTION ==================== */
.about-layout {
    max-width: 800px;
}

.about-text-block {
    margin-bottom: 40px;
}

.about-lead {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-bright);
    line-height: 1.4;
    margin-bottom: 20px;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.about-lead em {
    font-style: normal;
    color: var(--emerald);
}

.about-text-block p {
    font-size: 1.05rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 16px;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-bright);
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.stat-lbl {
    font-size: 0.85rem;
    color: var(--text-dim);
    font-weight: 500;
}

.skill-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.skill-pill {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    color: var(--text-bright);
    transition: var(--transition);
}

.skill-pill:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
    transform: scale(1.05);
}

.experience-section {
    margin-bottom: 40px;
}

.exp-card {
    display: flex;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
}

.exp-card:last-child {
    border-bottom: none;
}

.exp-when {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-dim);
    min-width: 100px;
    padding-top: 2px;
}

.exp-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 4px;
}

.exp-info p {
    font-size: 0.95rem;
    color: var(--text-dim);
}

.contact-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    gap: 8px;
    background: var(--text-bright);
    color: var(--bg);
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.contact-cta:hover {
    transform: scale(1.02);
    background: #e0e0e2;
}

/* ==================== CONTACT ==================== */
.contact-slide {
    text-align: center;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 480px;
    margin: 0 auto;
}

.contact-link-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 30px;
    transition: var(--transition);
}

.contact-link-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: scale(1.02);
}

.contact-link-card .contact-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-link-card svg {
    flex-shrink: 0;
    stroke: var(--text-bright);
    width: 28px;
    height: 28px;
}

.contact-val {
    display: block;
    font-size: 1.05rem;
    color: var(--text-bright);
    font-weight: 500;
}

.contact-arrow {
    opacity: 0;
    transition: var(--transition);
    color: var(--text-dim);
}

.contact-link-card:hover .contact-arrow {
    opacity: 1;
    transform: translateX(4px);
    color: var(--text-bright);
}

/* ==================== MOBILE ==================== */
@media (max-width: 768px) {
    .slide-nav {
        right: 12px;
        gap: 16px;
        /* slightly more gap for tapping */
    }

    .nav-dot {
        width: 8px;
        /* larger tap target */
        height: 8px;
    }

    .slide-content {
        padding: 60px 20px 40px;
        /* add top padding to avoid status bar overlap */
    }

    .hub-name {
        font-size: 2.8rem;
    }

    .hub-options {
        gap: 10px;
    }

    .hub-option {
        padding: 16px 20px;
    }

    .option-icon {
        width: 36px;
        height: 36px;
    }

    .option-icon svg {
        width: 18px;
        height: 18px;
    }

    .card-grid,
    .card-grid.games-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .contact-cards {
        max-width: 100%;
    }

    .bg-orb {
        filter: blur(80px);
    }

    .exp-card {
        flex-direction: column;
        gap: 8px;
    }

    .exp-when {
        padding-top: 0;
    }
}

@media (max-width: 480px) {
    .hub-name {
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .contact-link-card {
        padding: 20px;
    }

    .contact-val {
        font-size: 0.95rem;
    }
}