/* ===== CSS Custom Properties ===== */
:root {
    /* Colors - Dark Terminal Theme */
    --color-primary: #0a192f;
    --color-secondary: #112240;
    --color-tertiary: #1a2e4a;
    --color-accent: #00ff9f;
    --color-accent-secondary: #00d4ff;
    --color-background: #0a0e27;
    --color-text: #ccd6f6;
    --color-text-light: #94a0be;
    --color-border: #233554;
    --color-surface: #112240;
    --color-glow: rgba(0, 255, 159, 0.5);
    --color-glow-secondary: rgba(0, 212, 255, 0.5);

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'Courier New', 'Consolas', 'Monaco', monospace;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;

    /* Layout */
    --container-max: 1200px;
    --header-height: 70px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-glow);
    --shadow-glow-secondary: 0 0 20px var(--color-glow-secondary);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-background);
    background-image:
        radial-gradient(circle at 20% 50%, rgba(0, 255, 159, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.03) 0%, transparent 50%);
    background-attachment: fixed;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
    text-shadow: 0 0 10px var(--color-glow-secondary);
}

ul {
    list-style: none;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section__title {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.section__title::before {
    content: '> ';
    color: var(--color-accent-secondary);
}

.section__title::after {
    content: '';
    display: block;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    margin: var(--spacing-sm) auto 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-mono);
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    transition: left var(--transition-normal);
    z-index: -1;
}

.btn--primary:hover {
    color: var(--color-background);
    box-shadow: var(--shadow-glow);
    text-shadow: none;
}

.btn--primary:hover::before {
    left: 0;
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-accent-secondary);
    border-color: var(--color-accent-secondary);
}

.btn--secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent-secondary);
    transition: left var(--transition-normal);
    z-index: -1;
}

.btn--secondary:hover {
    color: var(--color-background);
    box-shadow: var(--shadow-glow-secondary);
    text-shadow: none;
}

.btn--secondary:hover::before {
    left: 0;
}

.btn--outline {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn--outline:hover {
    background-color: rgba(0, 255, 159, 0.1);
    box-shadow: var(--shadow-glow);
}

.btn--full {
    width: 100%;
}

.btn--coffee {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #FFDD00 0%, #FBB034 100%);
    color: #000;
    border: 2px solid #FFDD00;
    padding: 0.625rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font-mono);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 10px rgba(255, 221, 0, 0.2);
}

.btn--coffee:hover {
    background: linear-gradient(135deg, #FBB034 0%, #FFDD00 100%);
    color: #000;
    text-shadow: none;
    box-shadow: 0 0 20px rgba(255, 221, 0, 0.5);
    transform: translateY(-2px);
}

.btn--coffee svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn--paypal {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #003087 0%, #009cde 100%);
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn--paypal:hover {
    background: linear-gradient(135deg, #009cde 0%, #003087 100%);
    color: #fff;
    text-shadow: none;
    box-shadow: 0 0 20px rgba(0, 156, 222, 0.5);
    transform: translateY(-2px);
}

.btn--paypal svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn--bitcoin {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #F7931A 0%, #E8820E 100%);
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--bitcoin:hover {
    background: linear-gradient(135deg, #E8820E 0%, #F7931A 100%);
    color: #fff;
    text-shadow: none;
    box-shadow: 0 0 20px rgba(247, 147, 26, 0.5);
    transform: translateY(-2px);
}

.btn--bitcoin svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn--solana {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #9945FF 0%, #14F195 100%);
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--solana:hover {
    background: linear-gradient(135deg, #14F195 0%, #9945FF 100%);
    color: #fff;
    text-shadow: none;
    box-shadow: 0 0 20px rgba(153, 69, 255, 0.5);
    transform: translateY(-2px);
}

.btn--solana svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn--ethereum {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #627EEA 0%, #3C3C3D 100%);
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--ethereum:hover {
    background: linear-gradient(135deg, #3C3C3D 0%, #627EEA 100%);
    color: #fff;
    text-shadow: none;
    box-shadow: 0 0 20px rgba(98, 126, 234, 0.5);
    transform: translateY(-2px);
}

.btn--ethereum svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.support__buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* ===== BTC Modal ===== */
.btc-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.btc-modal.active {
    display: flex;
}

.btc-modal__content {
    background-color: var(--color-secondary);
    border: 1px solid rgba(247, 147, 26, 0.4);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 420px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: 0 0 40px rgba(247, 147, 26, 0.15);
}

.btc-modal__close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.btc-modal__close:hover {
    color: var(--color-accent);
}

.btc-modal__title {
    font-size: 1.25rem;
    font-family: var(--font-mono);
    color: #F7931A;
    margin-bottom: var(--spacing-md);
}

.btc-modal__qr {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.btc-modal__qr img {
    width: 200px;
    height: 200px;
    background-color: #fff;
    padding: 10px;
    border-radius: var(--radius-sm);
}

.btc-modal__address {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
}

.btc-modal__address code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text);
    word-break: break-all;
    text-align: left;
}

.btc-modal__address .btn--sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.btc-modal__status {
    margin-top: var(--spacing-xs);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
    min-height: 1.2em;
}

/* ===== SOL/ETH Crypto Modals ===== */
.crypto-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.crypto-modal.active {
    display: flex;
}

.crypto-modal__content {
    background-color: var(--color-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 420px;
    width: 90%;
    text-align: center;
    position: relative;
}

.crypto-modal__content--sol {
    border: 1px solid rgba(153, 69, 255, 0.4);
    box-shadow: 0 0 40px rgba(153, 69, 255, 0.15);
}

.crypto-modal__content--eth {
    border: 1px solid rgba(98, 126, 234, 0.4);
    box-shadow: 0 0 40px rgba(98, 126, 234, 0.15);
}

.crypto-modal__close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.crypto-modal__close:hover {
    color: var(--color-accent);
}

.crypto-modal__title {
    font-size: 1.25rem;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-md);
}

.crypto-modal__title--sol {
    color: #9945FF;
}

.crypto-modal__title--eth {
    color: #627EEA;
}

.crypto-modal__qr {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.crypto-modal__qr img {
    width: 200px;
    height: 200px;
    background-color: #fff;
    padding: 10px;
    border-radius: var(--radius-sm);
}

.crypto-modal__address {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
}

.crypto-modal__address code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text);
    word-break: break-all;
    text-align: left;
}

.crypto-modal__address .btn--sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.crypto-modal__status {
    margin-top: var(--spacing-xs);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
    min-height: 1.2em;
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 14, 39, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 255, 159, 0.1);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.nav__logo {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    letter-spacing: 1px;
}

.nav__logo::before {
    content: '$ ';
    color: var(--color-accent-secondary);
}

.nav__logo:hover {
    color: var(--color-accent-secondary);
    text-shadow: var(--shadow-glow);
}

.nav__list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    font-weight: 500;
    font-family: var(--font-mono);
    color: var(--color-text-light);
    position: relative;
    font-size: 0.9rem;
}

.nav__link::before {
    content: '>';
    margin-right: 0.25rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    box-shadow: var(--shadow-glow);
    transition: width var(--transition-fast);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-accent);
}

.nav__link:hover::before,
.nav__link.active::before {
    opacity: 1;
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__toggle,
.nav__close {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 5px 0;
    transition: var(--transition-fast);
    box-shadow: 0 0 5px var(--color-glow);
}

.nav__close {
    font-size: 2rem;
    color: var(--color-accent);
}

/* ===== Language Switcher ===== */
.nav__lang {
    position: relative;
    margin-left: var(--spacing-md);
}

.lang__toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang__toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.lang__toggle svg {
    width: 18px;
    height: 18px;
}

#current-lang {
    font-size: 0.875rem;
    font-weight: 600;
}

.lang__menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background-color: var(--color-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

.lang__menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang__option {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang__option:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.lang__option:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.lang__option:hover {
    background-color: rgba(0, 255, 159, 0.1);
    color: var(--color-accent);
}

.lang__option.active {
    background-color: rgba(0, 255, 159, 0.15);
    color: var(--color-accent);
}

/* RTL Support for Arabic */
html[dir="rtl"] {
    direction: rtl;
}

html[dir="rtl"] body {
    text-align: right;
}

html[dir="rtl"] .nav__list {
    flex-direction: row-reverse;
}

html[dir="rtl"] .nav__lang {
    margin-left: 0;
    margin-right: var(--spacing-md);
}

html[dir="rtl"] .lang__menu {
    right: auto;
    left: 0;
}

html[dir="rtl"] .lang__option {
    text-align: right;
}

html[dir="rtl"] .nav__link::before {
    margin-right: 0;
    margin-left: 0.25rem;
}

html[dir="rtl"] .about__subtitle::before {
    content: ' //';
}

html[dir="rtl"] .section__title::before {
    content: ' <';
}

html[dir="rtl"] .form__label::before {
    content: ' <';
}

html[dir="rtl"] .nav__logo::before,
html[dir="rtl"] .footer__logo::before {
    content: ' $';
}

html[dir="rtl"] .hero__greeting::before {
    content: ' >';
}

/* ===== Hero Typing Animation ===== */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero__cursor {
    display: inline-block;
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 400;
    animation: blink 0.7s step-end infinite;
}

.hero--animate .hero__greeting,
.hero--animate .hero__name,
.hero--animate .hero__title,
.hero--animate .hero__content > .btn {
    opacity: 0;
}

.hero--animate .hero--typed {
    opacity: 1;
}

.hero--animate .hero__btn-visible {
    opacity: 1;
    transition: opacity 0.5s ease;
}

@media (prefers-reduced-motion: reduce) {
    .hero--animate .hero__greeting,
    .hero--animate .hero__name,
    .hero--animate .hero__title,
    .hero--animate .hero__content > .btn {
        opacity: 1 !important;
    }

    .hero__cursor {
        display: none !important;
    }
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-background);
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero__container {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero__greeting {
    display: block;
    font-size: 1.125rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-sm);
}

.hero__greeting::before {
    content: '> ';
}

.hero__name {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 20px var(--color-glow);
    letter-spacing: 2px;
}

.hero__title {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Section Canvas Backgrounds ===== */
.section-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== About Section ===== */
.about {
    background-color: var(--color-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.about__container {
    display: grid;
    gap: var(--spacing-xl);
    align-items: start;
}

.about__image {
    display: flex;
    justify-content: center;
}

.about__img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-accent);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
    position: relative;
}

.about__content {
    text-align: center;
}

.about__subtitle {
    font-size: 1.25rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.about__subtitle::before {
    content: '// ';
    color: var(--color-text-light);
}

.about__subtitle:first-of-type {
    margin-top: 0;
}

.about__text {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    line-height: 1.8;
}

.about__skills {
    margin-top: var(--spacing-lg);
}

.about__skills-title {
    font-size: 1.25rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.skills__list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.skill__item {
    background-color: rgba(0, 255, 159, 0.1);
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.skill__item:hover {
    background-color: var(--color-accent);
    color: var(--color-background);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* ===== Tech Stack Section ===== */
.stack {
    background-color: var(--color-background);
    position: relative;
    overflow: hidden;
}

.stack__grid {
    display: grid;
    gap: var(--spacing-xl);
}

.stack__category {
    background-color: var(--color-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.stack__category:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.2);
    transform: translateY(-4px);
}

.stack__category-title {
    font-size: 1.5rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.stack__category-title::before {
    content: '[ ';
    color: var(--color-accent-secondary);
}

.stack__category-title::after {
    content: ' ]';
    color: var(--color-accent-secondary);
}

.stack__items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.stack__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: rgba(0, 255, 159, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    cursor: default;
}

.stack__item:hover {
    background-color: rgba(0, 255, 159, 0.1);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.stack__icon {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    text-shadow: 0 0 10px var(--color-glow);
}

.stack__name {
    font-size: 0.875rem;
    font-family: var(--font-mono);
    color: var(--color-text-light);
    text-align: center;
}

/* ===== GPG Key Section ===== */
.gpg {
    background-color: var(--color-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.gpg__container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.gpg__description {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.gpg__key-wrapper {
    background-color: #0a0e1a;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    overflow: auto;
    max-height: 300px;
    box-shadow: inset 0 0 20px rgba(0, 255, 159, 0.1);
}

.gpg__key {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.4;
    text-align: left;
    white-space: pre-wrap;
    word-break: break-all;
    text-shadow: 0 0 5px var(--color-glow);
}

.gpg__actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.gpg__status {
    margin-top: var(--spacing-md);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 500;
}

/* ===== Contact Section ===== */
.contact {
    background-color: var(--color-background);
    position: relative;
    overflow: hidden;
}

.contact__container {
    max-width: 800px;
    margin: 0 auto;
}

.contact__description {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.contact__form {
    width: 100%;
    background-color: var(--color-secondary);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 0 30px rgba(0, 255, 159, 0.1);
    box-sizing: border-box;
}

.form__group {
    margin-bottom: var(--spacing-md);
}

.form__label {
    display: block;
    font-weight: 500;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-xs);
    color: var(--color-accent-secondary);
}

.form__label::before {
    content: '> ';
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 10px var(--color-glow);
    background-color: rgba(0, 0, 0, 0.5);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__feedback {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-align: center;
}

.form__feedback--success {
    background: rgba(0, 255, 159, 0.1);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
}

.form__feedback--error {
    background: rgba(255, 95, 86, 0.1);
    border: 1px solid #ff5f56;
    color: #ff5f56;
}

/* ===== Game Section ===== */
/* COMMENTED OUT: Chip Flight Game CSS
.game {
    background-color: var(--color-background);
}

.game__container {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.game__description {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.game__wrapper {
    position: relative;
    display: inline-block;
    background-color: var(--color-secondary);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: 0 0 30px rgba(0, 255, 159, 0.2);
}

#gameCanvas {
    display: block;
    background-color: #0a0e1a;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.game__overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background-color: rgba(17, 34, 64, 0.95);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    border: 2px solid var(--color-accent);
    box-shadow: 0 0 30px rgba(0, 255, 159, 0.3);
    pointer-events: none;
}

.game__overlay.hidden {
    display: none;
}

.game__overlay-title {
    font-size: 2rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 10px var(--color-glow);
}

.game__overlay-text {
    font-size: 1rem;
    font-family: var(--font-mono);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.game__score-display {
    margin-top: var(--spacing-md);
}

.game__label {
    font-family: var(--font-mono);
    color: var(--color-text-light);
    margin-right: var(--spacing-xs);
}

.game__high-score {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--color-accent-secondary);
    font-weight: bold;
}

.game__stats {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.game__stat {
    font-family: var(--font-mono);
}

.game__stat-label {
    color: var(--color-text-light);
    margin-right: var(--spacing-xs);
}

.game__stat-value {
    color: var(--color-accent);
    font-size: 1.25rem;
    font-weight: bold;
}
*/

/* ===== Footer ===== */
.footer {
    background-color: #050a14;
    color: var(--color-text);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer__content {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__logo {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.footer__logo::before {
    content: '$ ';
    color: var(--color-accent-secondary);
}

.footer__text {
    color: var(--color-text-light);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.footer__title {
    font-size: 1rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-md);
}

.footer__nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer__nav a {
    color: var(--color-text-light);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.footer__nav a::before {
    content: '> ';
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.footer__nav a:hover {
    color: var(--color-accent);
}

.footer__nav a:hover::before {
    opacity: 1;
}

.social__links {
    display: flex;
    gap: var(--spacing-md);
}

.social__link {
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}

.social__link:hover {
    color: var(--color-accent);
    filter: drop-shadow(0 0 5px var(--color-glow));
}

.social__link svg {
    width: 24px;
    height: 24px;
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer__bottom p {
    color: var(--color-text-light);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.footer__support {
    margin-top: var(--spacing-sm);
}

/* ===== Responsive Design ===== */

/* Mobile Navigation */
@media screen and (max-width: 767px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(10px);
        border-left: 1px solid var(--color-border);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
        padding: var(--spacing-xxl) var(--spacing-lg);
        transition: right var(--transition-normal);
        z-index: 1001;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .nav__link {
        font-size: 1.125rem;
    }

    .nav__close {
        display: block;
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }

    .nav__toggle {
        display: block;
    }

    .nav__lang {
        margin-left: 0;
    }

    .hero__name {
        font-size: 2.25rem;
    }

    .stack__items {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    }
}

/* Tablet */
@media screen and (min-width: 768px) {
    .about__container {
        grid-template-columns: 1fr 2fr;
        text-align: left;
    }

    .about__content {
        text-align: left;
    }

    .skills__list {
        justify-content: flex-start;
    }

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

    .footer__content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Desktop */
@media screen and (min-width: 1024px) {
    .hero__name {
        font-size: 4rem;
    }

    .hero__title {
        font-size: 1.5rem;
    }

    .section__title {
        font-size: 2.5rem;
    }

    .about__img {
        width: 300px;
        height: 300px;
    }

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

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--color-primary);
    border-left: 1px solid var(--color-border);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-secondary));
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-glow);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent) var(--color-primary);
}

/* ===== Selection Styling ===== */
::selection {
    background-color: var(--color-accent);
    color: var(--color-background);
}

::-moz-selection {
    background-color: var(--color-accent);
    color: var(--color-background);
}

/* ===== Loading Animation ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease-out;
}

/* ===== Hero Small (Subpages) ===== */
.hero--small {
    min-height: 40vh;
}

.hero--small .hero__name {
    font-size: 2.5rem;
}

@media screen and (min-width: 1024px) {
    .hero--small .hero__name {
        font-size: 3rem;
    }
}

/* ===== Skills Grid (About Page) ===== */
.skills__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.skill__card {
    background-color: var(--color-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.skill__card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 255, 159, 0.2);
    transform: translateY(-4px);
}

.skill__icon {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.skill__icon svg {
    width: 48px;
    height: 48px;
}

.skill__title {
    font-size: 1.125rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-sm);
}

.skill__description {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== Contact Page Layout ===== */
.contact__wrapper {
    display: grid;
    gap: var(--spacing-xl);
}

@media screen and (min-width: 768px) {
    .contact__wrapper {
        grid-template-columns: 2fr 3fr;
        align-items: stretch;
    }
}

.contact__info {
    background-color: var(--color-secondary);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.08);
    transition: box-shadow var(--transition-normal);
}

.contact__info:hover {
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.14);
}

.contact__wrapper .contact__container {
    max-width: none;
    background-color: var(--color-secondary);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
}

.contact__wrapper .contact__form {
    background-color: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact__wrapper .contact__form .form__group:last-of-type {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact__wrapper .contact__form .form__group:last-of-type .form__textarea {
    flex: 1;
}

.contact__info-title,
.contact__form-title {
    font-size: 1.5rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.contact__info-title::before,
.contact__form-title::before {
    content: '// ';
    color: var(--color-accent-secondary);
}

.contact__info-text {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.contact__methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact__method {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: rgba(0, 255, 159, 0.05);
    border: 1px solid var(--color-border);
    border-left: 2px solid transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.contact__method:hover {
    border-color: var(--color-accent);
    border-left-color: var(--color-accent);
    background-color: rgba(0, 255, 159, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(0, 255, 159, 0.15);
}

.contact__method-icon {
    color: var(--color-accent);
    flex-shrink: 0;
}

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

.contact__method-content h4 {
    font-size: 0.9rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-xs);
}

.contact__method-content h4::before {
    content: '$ ';
    color: var(--color-accent);
}

.contact__method-content a {
    font-size: 0.9rem;
    color: var(--color-text);
    word-break: break-word;
}

.contact__method-content a:hover {
    color: var(--color-accent);
}

.contact__secure {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-sm);
    background-color: rgba(0, 212, 255, 0.05);
}

.contact__secure h4 {
    font-size: 1rem;
    font-family: var(--font-mono);
    color: var(--color-accent-secondary);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.contact__secure h4::before {
    content: '\1F6E1';
}

.contact__secure p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Contact form input focus accent */
.form__input:focus,
.form__textarea:focus {
    border-bottom: 2px solid var(--color-accent);
}

/* ===== Contact Entrance Animations ===== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.contact__method {
    opacity: 0;
    animation: slideInLeft 0.5s ease forwards;
}

.contact__method:nth-child(1) {
    animation-delay: 0.1s;
}

.contact__method:nth-child(2) {
    animation-delay: 0.25s;
}

.contact__method:nth-child(3) {
    animation-delay: 0.4s;
}

.contact__wrapper .contact__container {
    opacity: 0;
    animation: slideInRight 0.6s ease 0.2s forwards;
}

/* ===== Projects Section ===== */
#projects {
    position: relative;
    overflow: hidden;
}

.projects__construction {
    max-width: 700px;
    margin: 0 auto;
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    font-family: var(--font-mono);
    text-align: center;
    box-shadow: 0 0 30px rgba(0, 255, 159, 0.1);
}

.projects__construction-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.projects__construction-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.projects__construction-dot--red { background: #ff5f56; }
.projects__construction-dot--yellow { background: #ffbd2e; }
.projects__construction-dot--green { background: #27ca40; }

.projects__construction h3 {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 0 10px var(--color-glow);
}

.projects__construction p {
    color: var(--color-text-light);
    line-height: 1.8;
}

.projects__construction-prompt {
    text-align: left;
    color: var(--color-accent-secondary);
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
}

.projects__construction-prompt .cursor {
    display: inline-block;
    color: var(--color-accent);
    animation: blink 0.7s step-end infinite;
}

/* ===== Focus Visible ===== */
a:focus-visible,
button:focus-visible,
.nav__link:focus-visible,
.lang__toggle:focus-visible,
.lang__option:focus-visible,
.btn:focus-visible,
.form__input:focus-visible,
.form__textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    box-shadow: 0 0 8px var(--color-glow);
}

.form__input:focus-visible,
.form__textarea:focus-visible {
    outline-offset: 0;
}

/* ===== Placeholder Styles ===== */
.form__input::placeholder,
.form__textarea::placeholder {
    color: #6a7494;
    opacity: 1;
}

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

    .contact__method,
    .contact__wrapper .contact__container {
        opacity: 1;
    }

    #hero-canvas,
    .section-canvas {
        display: none;
    }
}