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

:root {
    /* Colors - Dark theme matching reference */
    --color-bg: #000000;
    --color-text: #ffffff;
    --color-text-secondary: #999999;
    --color-border: #222222;
    --color-accent: #ffffff;
    --color-hover: #cccccc;

    /* Typography */
    --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    --font-size-hero: 32px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 12px;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    padding: 0 var(--spacing-xl);
}

/* ===================================
   Loading Animation
   =================================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-circle {
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-text);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===================================
   Scroll Progress Indicator
   =================================== */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-hover));
    z-index: 1000;
    transition: width 0.1s ease;
}

/* ===================================
   Cursor Glow Effect
   =================================== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ===================================
   Header Section - Clean & Simple
   =================================== */
.header {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    z-index: 100;
}

.header-content {
    width: 100%;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: rotate(90deg);
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Header Controls - Play Button + Contact */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.play-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    border-radius: 4px;
}

.play-button:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: scale(1.1);
}

.play-button svg {
    transition: var(--transition-smooth);
}

.contact-link {
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.contact-link:hover {
    color: var(--color-hover);
}

/* ===================================
   Hero Section - Name Left, Text Right
   =================================== */
.hero {
    padding: var(--spacing-3xl) 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.hero-left {
    position: sticky;
    top: var(--spacing-3xl);
}

.hero-left .name {
    font-size: var(--font-size-xl);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.hero-left .title {
    font-size: var(--font-size-small);
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

/* Hero text container with max-width */
.hero-text-container {
    max-width: 1200px;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

/* ===================================
   Brand Logos - Below Hero Text
   =================================== */
.brand-logos {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.brand-item {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    transition: var(--transition-smooth);
}

.brand-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--color-text);
}

/* ===================================
   Software Projects Section
   =================================== */
.software-section {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.section-intro {
    margin-bottom: var(--spacing-2xl);
}

.section-heading {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: var(--font-size-large);
    color: var(--color-text-secondary);
}

.software-cta {
    display: block;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.software-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.software-preview:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.software-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.software-preview:hover .software-icon {
    background-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.1) rotate(5deg);
}

.software-info {
    flex: 1;
    position: relative;
}

.software-title {
    font-size: var(--font-size-2xl);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.software-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.software-arrow {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.software-preview:hover .software-arrow {
    transform: translateY(-50%) translateX(10px);
}

/* ===================================
   Skills Section
   =================================== */
.skills-section {
    padding: var(--spacing-2xl) 0;
}

.skill-card {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card:hover {
    transform: translateX(var(--spacing-sm));
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-name {
    font-size: var(--font-size-xl);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.skill-meta {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    font-weight: 400;
}

.skill-tags {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.tag {
    font-size: var(--font-size-small);
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: var(--color-text);
    font-weight: 400;
    transition: var(--transition-smooth);
}

.skill-card:hover .tag {
    background-color: rgba(255, 255, 255, 0.15);
}

.skill-description {
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 700px;
}

/* ===================================
   About Section
   =================================== */
.about-section {
    padding: var(--spacing-3xl) 0;
    background-color: rgba(255, 255, 255, 0.02);
}

.section-title {
    font-size: var(--font-size-small);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.about-content {
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-content p {
    font-size: var(--font-size-large);
    line-height: 1.7;
    color: var(--color-text);
}

/* ===================================
   Focus Section
   =================================== */
.focus-section {
    padding: var(--spacing-3xl) 0;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.focus-item {
    font-size: var(--font-size-base);
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    font-weight: 400;
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    padding: var(--spacing-3xl) 0;
    background-color: rgba(255, 255, 255, 0.02);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: inline-flex;
    align-items: center;
    font-size: var(--font-size-base);
    color: var(--color-text);
    text-decoration: none;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-smooth);
    position: relative;
    width: fit-content;
}

.contact-item::after {
    content: '→';
    margin-left: var(--spacing-xs);
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition-smooth);
}

.contact-item:hover::after {
    opacity: 1;
    transform: translateX(0);
}

.contact-item:hover {
    color: var(--color-hover);
    padding-left: var(--spacing-sm);
}

.contact-label {
    font-weight: 400;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-xl);
    color: var(--color-text);
}

.cta-button {
    display: inline-block;
    font-size: var(--font-size-large);
    font-weight: 400;
    color: var(--color-text);
    text-decoration: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid var(--color-text);
    border-radius: var(--border-radius);
    transition: var(--transition-smooth);
}

.cta-button:hover {
    background-color: var(--color-text);
    color: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
}

.footer-text {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.footer-version {
    font-size: 12px;
    color: var(--color-text-secondary);
    text-align: center;
    opacity: 0.5;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-layout {
        grid-template-columns: 250px 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-hero: 36px;
        --font-size-3xl: 32px;
        --font-size-2xl: 24px;
        --spacing-3xl: 64px;
        --spacing-2xl: 48px;
        --spacing-xl: 32px;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .header {
        padding: var(--spacing-lg) 0;
    }

    .header-content {
        padding: 0 var(--spacing-md);
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero-left {
        position: static;
    }

    .skill-card:hover {
        padding-left: 0;
    }

    .focus-grid {
        grid-template-columns: 1fr;
    }

    .brand-logos {
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-hero: 28px;
        --font-size-3xl: 24px;
        --spacing-md: 20px;
    }

    .skill-name {
        font-size: var(--font-size-xl);
    }

    .about-content p {
        font-size: var(--font-size-base);
    }

    .header-controls {
        gap: var(--spacing-sm);
    }
}

/* ===================================
   Software Projects Page Styles
   =================================== */
.back-link {
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-smooth);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
}

.back-link:hover {
    color: var(--color-hover);
    background-color: rgba(255, 255, 255, 0.05);
}

.page-hero {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    text-align: center;
}

.page-title {
    font-size: var(--font-size-hero);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: var(--font-size-large);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.projects-section {
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.project-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    transition: var(--transition-smooth);
}

.project-card:hover {
    background-color: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.project-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.project-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.project-meta {
    flex: 1;
}

.project-name {
    font-size: var(--font-size-3xl);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.project-type {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.project-description {
    font-size: var(--font-size-large);
    line-height: 1.7;
    color: var(--color-text);
}

.features-title,
.tech-title {
    font-size: var(--font-size-large);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.features-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

.features-list li {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    padding-left: var(--spacing-md);
    position: relative;
}

.features-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-text);
}

.tech-stack {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-tag {
    font-size: var(--font-size-small);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: var(--color-text);
    font-weight: 400;
}

.project-perfect-for {
    margin-top: var(--spacing-sm);
}

.perfect-for-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.project-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.highlight-icon {
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.highlight-icon svg {
    width: 24px;
    height: 24px;
}

.highlight-text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    font-weight: 400;
}

/* Download Button States */
.btn-primary {
    min-width: 230px;
    text-align: center;
    white-space: nowrap;
}

.btn-primary.downloading {
    position: relative;
    pointer-events: none;
    min-width: 230px;
    background-color: var(--color-text);
    color: var(--color-bg);
}

.btn-primary .countdown {
    display: none;
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.btn-primary.downloading .countdown {
    display: inline-block;
}

.btn-primary.downloading .btn-text {
    display: none;
}

/* Disable other buttons during download */
.project-actions.downloading .btn-secondary,
.project-actions.downloading .btn-text {
    opacity: 0.3;
    pointer-events: none;
    filter: grayscale(100%);
}

/* Loading Spinner Animation */
.btn-primary .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--color-bg);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

.btn-primary.downloading .spinner {
    display: inline-block;
}

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

.btn-primary .countdown-wrapper {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary.downloading .countdown-wrapper {
    display: flex;
}

.project-status {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.status-badge {
    font-size: var(--font-size-small);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 6px;
    font-weight: 500;
}

.status-active {
    background-color: rgba(34, 197, 94, 0.2);
    color: rgb(34, 197, 94);
}

.version-badge {
    font-size: var(--font-size-small);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: var(--color-text-secondary);
}

.project-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: 8px;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-text);
    color: var(--color-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-text {
    background-color: transparent;
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) 0;
}

.btn-text:hover {
    color: var(--color-text);
}

/* Placeholder Project Card */
.project-placeholder {
    background-color: rgba(255, 255, 255, 0.01);
    border-style: dashed;
    text-align: center;
    padding: var(--spacing-3xl);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.placeholder-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
}

.placeholder-title {
    font-size: var(--font-size-2xl);
    font-weight: 400;
    color: var(--color-text-secondary);
}

.placeholder-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    max-width: 500px;
    opacity: 0.7;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.hero,
.brands-section,
.skill-card,
.about-section,
.focus-section,
.contact-section,
.cta-section {
    animation: fadeInUp 0.6s ease-out;
}

/* Stagger animations for skill cards */
.skill-card:nth-child(1) {
    animation-delay: 0.1s;
}

.skill-card:nth-child(2) {
    animation-delay: 0.2s;
}

.skill-card:nth-child(3) {
    animation-delay: 0.3s;
}

.skill-card:nth-child(4) {
    animation-delay: 0.4s;
}

.skill-card:nth-child(5) {
    animation-delay: 0.5s;
}