/* ========================================
   NEUMORPHISM PORTFOLIO - CSS
   Professional, Responsive, Smooth
   ======================================== */

/* === CSS Custom Properties === */
:root {
    /* Neumorphism Base Colors */
    --bg-primary: #2d2d3a;
    --bg-secondary: #33334a;
    --bg-tertiary: #393952;
    --bg-card: #2f2f42;
    
    /* Text Colors */
    --text-primary: #e8e8f0;
    --text-secondary: #a8a8c0;
    --text-muted: #7a7a9a;
    
    /* Accent Colors */
    --accent-primary: #6c63ff;
    --accent-secondary: #ff6b9d;
    --accent-gradient: linear-gradient(135deg, #6c63ff 0%, #ff6b9d 100%);
    
    /* Neumorphism Shadows */
    --shadow-light: rgba(60, 60, 80, 0.5);
    --shadow-dark: rgba(15, 15, 25, 0.7);
    --neu-raised: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
    --neu-flat: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
    --neu-inset: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
    --neu-hover: 12px 12px 24px var(--shadow-dark), -12px -12px 24px var(--shadow-light);
    
    /* Spacing */
    --section-padding: 6rem 0;
    --container-width: 1140px;
    --container-padding: 0 1.5rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 50%;
    
    /* Z-index */
    --z-header: 100;
    --z-loader: 1000;
    --z-back-top: 90;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.loaded .loader {
    opacity: 0;
    pointer-events: none;
}

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

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

input, textarea {
    font-family: inherit;
    outline: none;
    border: none;
}

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

/* === Loader === */
.loader {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loader);
    transition: opacity 0.5s ease;
}

.loader__spinner {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    animation: spin 0.8s linear infinite;
}

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

/* === Layout === */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.section {
    padding: var(--section-padding);
    position: relative;
}

/* === Section Header === */
.section__header {
    text-align: center;
    margin-bottom: 4rem;
}

.section__subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.section__title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section__line {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: 2px;
    margin: 0 auto;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(108, 99, 255, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(108, 99, 255, 0.4);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--ghost {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--neu-flat);
}

.btn--ghost:hover {
    box-shadow: var(--neu-raised);
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
    justify-content: center;
}

/* === Header / Navigation === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-header);
    background: transparent;
    transition: all var(--transition-normal);
    padding: 1rem 0;
}

.header.scrolled {
    background: rgba(45, 45, 58, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    padding: 0.5rem 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav__logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
    transition: var(--transition-fast);
}

.nav__logo-bracket {
    color: var(--accent-primary);
}

.nav__logo-text {
    color: var(--text-primary);
}

.nav__logo:hover {
    transform: scale(1.05);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav__link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav__link i {
    font-size: 1.1rem;
}

.nav__link:hover,
.nav__link.active {
    color: var(--accent-primary);
    background: rgba(108, 99, 255, 0.1);
}

.nav__toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    background: var(--bg-card);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
    box-shadow: var(--neu-flat);
    transition: var(--transition-fast);
}

.nav__toggle:hover {
    box-shadow: var(--neu-raised);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
}

.hero__container {
    width: 100%;
}

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

.hero__data {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 600px;
}

.hero__image {
    margin-bottom: 2rem;
}

.hero__image-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
}

.hero__greeting {
    display: block;
    font-size: 1rem;
    color: var(--accent-primary);
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.hero__name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.hero__title-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.hero__title-prefix {
    color: var(--text-secondary);
}

.hero__title {
    color: var(--text-primary);
    font-weight: 600;
}

.hero__cursor {
    color: var(--accent-primary);
    animation: blink 1s infinite;
}

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

.hero__description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    max-width: 480px;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.hero__socials {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.hero__social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 1.25rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
}

.hero__social-link:hover {
    color: var(--accent-primary);
    box-shadow: var(--neu-raised);
    transform: translateY(-3px);
}

/* Hero Image */
.hero__avatar {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    box-shadow: var(--neu-raised);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.hero__image-decoration {
    position: absolute;
    inset: -6px;
    border-radius: var(--radius-full);
    background: var(--accent-gradient);
    opacity: 0.2;
    z-index: 1;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.25; transform: scale(1.02); }
}

/* Floating badges */
.hero__floating-badges {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    box-shadow: var(--neu-flat);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    animation: float 4s ease-in-out infinite;
}

.hero__badge i {
    color: var(--accent-primary);
    font-size: 1rem;
}

.hero__badge--1 { top: 10%; left: -10%; animation-delay: 0s; }
.hero__badge--2 { top: 60%; right: -15%; animation-delay: 1.3s; }
.hero__badge--3 { bottom: 5%; left: 5%; animation-delay: 2.6s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Scroll indicator */
.hero__scroll-indicator {
    text-align: center;
    margin-top: 3rem;
}

.hero__scroll-indicator a {
    color: var(--text-muted);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    display: inline-block;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-8px); }
    60% { transform: translateY(-4px); }
}

/* === About Section === */
.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about__info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about__card {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
}

.about__card:hover {
    box-shadow: var(--neu-raised);
    transform: translateY(-3px);
}

.about__card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(108, 99, 255, 0.1);
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.about__card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.about__card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about__text-card {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--neu-flat);
}

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

.about__text-card p:last-of-type {
    margin-bottom: 2rem;
}

.about__text-card strong {
    color: var(--accent-primary);
    font-weight: 600;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.about__stat {
    text-align: center;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    box-shadow: var(--neu-inset);
}

.about__stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

.about__stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* === Projects Section === */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project__card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project__card:hover {
    box-shadow: var(--neu-hover);
    transform: translateY(-5px);
}

.project__card:hover::before {
    opacity: 1;
}

.project__card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.project__card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    box-shadow: var(--neu-inset);
    color: var(--accent-primary);
    font-size: 1.75rem;
}

.project__card-links {
    display: flex;
    gap: 0.75rem;
}

.project__link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

.project__link:hover {
    color: var(--accent-primary);
    transform: translateY(-2px);
}

.project__card-body {
    flex: 1;
}

.project__card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project__card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project__card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project__tag {
    padding: 0.3rem 0.75rem;
    background: var(--bg-primary);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--accent-primary);
    letter-spacing: 0.5px;
    box-shadow: var(--neu-inset);
}

.project__card-footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.project__status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.project__status--complete {
    color: #4ade80;
}

/* === Skills Section === */
.skills__content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.skills__category {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
}

.skills__category:hover {
    box-shadow: var(--neu-raised);
}

.skills__category-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.skills__category-title i {
    font-size: 1.3rem;
    color: var(--accent-primary);
}

.skills__list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 1.25rem;
}

.skill__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    box-shadow: var(--neu-inset);
    transition: all var(--transition-normal);
}

.skill__item:hover {
    transform: translateY(-3px);
    box-shadow: var(--neu-flat);
}

.skill__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.skill__icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.skill__name {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    letter-spacing: 0.5px;
}

/* === Contact Section === */
.contact__content {
    display: flex;
    justify-content: center;
}

.contact__info {
    max-width: 500px;
    width: 100%;
    text-align: center;
}

.contact__info-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact__info-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact__detail {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
    text-align: left;
}

.contact__detail:hover {
    box-shadow: var(--neu-raised);
    transform: translateX(5px);
}

.contact__detail-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(108, 99, 255, 0.1);
    color: var(--accent-primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact__detail-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.contact__detail-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

a.contact__detail-value:hover {
    color: var(--accent-primary);
}

/* Contact Form */
.contact__form-wrapper {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--neu-flat);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact__input-wrapper {
    position: relative;
}

.contact__input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.75rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    box-shadow: var(--neu-inset);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.contact__input:focus {
    border-color: var(--accent-primary);
    box-shadow: var(--neu-inset), 0 0 0 3px rgba(108, 99, 255, 0.1);
}

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

.contact__label {
    position: absolute;
    left: 2.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.contact__textarea ~ .contact__label {
    top: 1.25rem;
    transform: none;
}

.contact__input:focus ~ .contact__label,
.contact__input:not(:placeholder-shown) ~ .contact__label {
    top: -0.5rem;
    left: 1rem;
    font-size: 0.7rem;
    color: var(--accent-primary);
    background: var(--bg-card);
    padding: 0 0.4rem;
    font-weight: 600;
}

.contact__input-icon {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--text-muted);
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.contact__input:focus ~ .contact__input-icon {
    color: var(--accent-primary);
}

/* === Footer === */
.footer {
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer__content {
    text-align: center;
    margin-bottom: 2rem;
}

.footer__logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-bottom: 0.75rem;
}

.footer__description {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.footer__socials {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 1.1rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
}

.footer__social-link:hover {
    color: var(--accent-primary);
    box-shadow: var(--neu-raised);
    transform: translateY(-3px);
}

.footer__bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--accent-primary);
    font-size: 1.25rem;
    box-shadow: var(--neu-flat);
    z-index: var(--z-back-top);
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
}

.back-to-top:hover {
    box-shadow: var(--neu-raised);
    transform: translateY(-3px);
}

/* === Animations === */
.animate-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Stagger children */
.animate-reveal:nth-child(1) { transition-delay: 0s; }
.animate-reveal:nth-child(2) { transition-delay: 0.1s; }
.animate-reveal:nth-child(3) { transition-delay: 0.2s; }
.animate-reveal:nth-child(4) { transition-delay: 0.3s; }
.animate-reveal:nth-child(5) { transition-delay: 0.4s; }

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

/* Tablet */
@media screen and (max-width: 968px) {
    .hero__content {
        text-align: center;
    }
    
    .hero__description {
        margin: 0 auto 2rem;
    }
    
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .contact__content {
        flex-direction: column;
        align-items: center;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Mobile */
@media screen and (max-width: 768px) {
    :root {
        --section-padding: 4rem 0;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-normal);
        z-index: 99;
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav__link {
        padding: 1rem;
        border-radius: var(--radius-sm);
        font-size: 1rem;
    }
    
    .nav__link:hover,
    .nav__link.active {
        background: rgba(108, 99, 255, 0.1);
    }
    
    .hero {
        padding-top: 5rem;
    }
    
    .hero__image-wrapper {
        width: 160px;
        height: 160px;
    }
    
    .hero__image {
        margin-top: 1.5rem;
    }
    
    .hero__avatar {
        font-size: 5rem;
    }
    
    .hero__floating-badges {
        display: none;
    }
    
    .projects__grid {
        grid-template-columns: 1fr;
    }
    
    .skills__content {
        grid-template-columns: 1fr;
    }
    
    .about__stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    
    .about__stat-number {
        font-size: 1.4rem;
    }
}

/* Small mobile */
@media screen and (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section__title {
        font-size: 1.6rem;
    }
    
    .project__card {
        padding: 1.5rem;
    }
    
    .contact__form-wrapper {
        padding: 1.5rem;
    }
    
    .skills__list {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Overlay for mobile menu */
.nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: 98;
}

.nav__overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .animate-reveal {
        opacity: 1;
        transform: none;
    }
}

/* Focus visible styles */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* === Profile Photo === */
.hero__photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.hero__avatar {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    box-shadow: var(--neu-raised);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

/* === Theme Toggle Button === */
.nav__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav__theme-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.25rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-normal);
}

.nav__theme-toggle:hover {
    box-shadow: var(--neu-raised);
    color: var(--accent-primary);
    transform: rotate(20deg);
}

/* === Light Theme === */
body.light-theme {
    --bg-primary: #e8e8f0;
    --bg-secondary: #e0e0ec;
    --bg-tertiary: #d8d8e8;
    --bg-card: #e4e4f0;
    
    --text-primary: #2d2d3a;
    --text-secondary: #5a5a72;
    --text-muted: #8888a0;
    
    --shadow-light: rgba(255, 255, 255, 0.8);
    --shadow-dark: rgba(180, 180, 200, 0.5);
    --neu-raised: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
    --neu-flat: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
    --neu-inset: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
    --neu-hover: 12px 12px 24px var(--shadow-dark), -12px -12px 24px var(--shadow-light);
}

body.light-theme .header.scrolled {
    background: rgba(232, 232, 240, 0.95);
}

body.light-theme .project__tag {
    color: var(--accent-primary);
}

body.light-theme .hero__name {
    -webkit-text-fill-color: transparent;
}

/* === Skills Mobile Order === */
@media screen and (max-width: 768px) {
    .skills__content {
        grid-template-columns: 1fr;
    }
    
    .skills__category--general {
        order: -1;
    }
    
    .skills__category--tech {
        order: 1;
    }
}

/* === Social Icons Colors === */
.hero__social-link[aria-label="GitHub"],
.footer__social-link[aria-label="GitHub"] {
    color: #f0f0f0;
}

.hero__social-link[aria-label="GitHub"]:hover,
.footer__social-link[aria-label="GitHub"]:hover {
    color: #ffffff;
    background: #333;
}

.hero__social-link[aria-label="WhatsApp"],
.footer__social-link[aria-label="WhatsApp"] {
    color: #25D366;
}

.hero__social-link[aria-label="WhatsApp"]:hover,
.footer__social-link[aria-label="WhatsApp"]:hover {
    color: #ffffff;
    background: #25D366;
}

body.light-theme .hero__social-link[aria-label="GitHub"],
body.light-theme .footer__social-link[aria-label="GitHub"] {
    color: #333;
}

body.light-theme .hero__social-link[aria-label="GitHub"]:hover,
body.light-theme .footer__social-link[aria-label="GitHub"]:hover {
    color: #ffffff;
    background: #333;
}

/* === Project Modal === */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.modal__content {
    position: relative;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--neu-hover);
    max-width: 420px;
    width: 100%;
    text-align: center;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.active .modal__content {
    transform: scale(1) translateY(0);
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 1.2rem;
    box-shadow: var(--neu-flat);
    transition: all var(--transition-fast);
}

.modal__close:hover {
    color: var(--accent-secondary);
    box-shadow: var(--neu-raised);
}

.modal__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    box-shadow: var(--neu-inset);
    color: var(--accent-primary);
    font-size: 2rem;
}

.modal__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.modal__description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

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

.modal__buttons .btn {
    width: 100%;
    justify-content: center;
}

@media screen and (max-width: 480px) {
    .modal__content {
        padding: 2rem 1.5rem;
    }
}

/* === Project Card Thumbnail === */
.project__card-thumbnail {
    width: 100%;
    height: 180px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: var(--neu-inset);
}

.project__card-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.5s ease;
}

.project__card:hover .project__card-thumbnail img {
    transform: scale(1.05);
}

/* === Photo Lightbox === */
.hero__image-wrapper[role="button"] {
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.hero__image-wrapper[role="button"]:hover {
    transform: scale(1.05);
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.lightbox.active {
    opacity: 1;
    pointer-events: all;
}

.lightbox__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.lightbox__content {
    position: relative;
    max-width: 500px;
    width: 100%;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.lightbox.active .lightbox__content {
    transform: scale(1);
}

.lightbox__image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
    position: absolute;
    top: -1rem;
    right: -1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.2rem;
    box-shadow: var(--neu-raised);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.lightbox__close:hover {
    color: var(--accent-secondary);
    transform: rotate(90deg);
}