/* ============================================
    DESIGN SYSTEM & CSS VARIABLES
    Premium Dark Portfolio — Jeremy Chávez
============================================ */
:root {
    /* Color System — HSL */
    --background: 160 18% 7%;
    --background-alt: 160 15% 10%;
    --foreground: 60 10% 93%;
    --card: 160 14% 12%;
    --card-foreground: 60 10% 93%;

    /* Primary: Emerald Green (vest color) */
    --primary: 158 45% 38%;
    --primary-foreground: 160 18% 7%;

    /* Secondary: Deep Forest Green */
    --secondary: 162 55% 28%;
    --secondary-foreground: 60 10% 93%;

    /* Accent: Olive Gold (tie color) */
    --accent: 50 38% 52%;
    --accent-foreground: 160 18% 7%;

    /* Muted/Border */
    --muted: 160 12% 15%;
    --muted-foreground: 60 8% 50%;
    --border: 160 10% 19%;

    /* Design Tokens */
    --radius: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --gradient-primary: linear-gradient(135deg, hsl(158 45% 38%), hsl(50 38% 52%));
    --gradient-glow: linear-gradient(135deg, oklch(58.141% 0.09805 165.832 / 0.4), hsl(50 38% 52% / 0.4));
    --gradient-card-border: linear-gradient(135deg, hsl(158 45% 38% / 0.3), hsl(50 38% 52% / 0.15), transparent);
    --shadow-glow: 0 0 60px hsl(158 45% 38% / 0.15);
    --shadow-glow-strong: 0 0 80px hsl(158 45% 38% / 0.25);
    --shadow-card: 0 8px 32px hsl(160 18% 4% / 0.4);
    --shadow-card-hover: 0 16px 48px hsl(160 18% 4% / 0.6);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    background: hsl(var(--background));
    color: hsl(var(--foreground));
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

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

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

/* ===== UTILITIES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-card {
    background: hsl(var(--card) / 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid hsl(var(--border) / 0.4);
    border-radius: var(--radius-lg);
    position: relative;
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.glass-card:hover::before {
    opacity: 1;
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
    NAVIGATION
============================================ */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
}

nav.scrolled {
    background: hsl(var(--background) / 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid hsl(var(--border) / 0.3);
    box-shadow: 0 4px 30px hsl(var(--background) / 0.5);
    padding: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
    padding: 0 1.5rem;
}

.nav-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    cursor: pointer;
    position: relative;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: hsl(var(--muted-foreground));
    cursor: pointer;
    transition: var(--transition-smooth);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    position: relative;
}

.nav-link:hover {
    color: hsl(var(--foreground));
    background: hsl(var(--muted) / 0.5);
}

.nav-link.active {
    color: hsl(var(--primary));
    background: hsl(var(--primary) / 0.1);
}

/* Mobile Nav */
.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    color: hsl(var(--foreground));
    background: hsl(var(--muted) / 0.3);
    border: 1px solid hsl(var(--border) / 0.3);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.mobile-toggle:hover {
    background: hsl(var(--muted) / 0.5);
    border-color: hsl(var(--primary) / 0.3);
}

.mobile-menu {
    display: none;
    background: hsl(var(--card) / 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid hsl(var(--border) / 0.3);
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
    max-height: 400px;
    padding: 1.5rem;
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-menu .nav-link {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
}

.mobile-menu .nav-link:hover {
    background: hsl(var(--primary) / 0.1);
    color: hsl(var(--primary));
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-toggle { display: flex; }
    .mobile-menu { display: block; }
}

/* ============================================
    HERO SECTION
============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 90px 0 40px;
}

/* Grid background */
.hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.07;
    background-image:
        radial-gradient(circle at 1px 1px, hsl(var(--muted-foreground)) 1px, transparent 0);
    background-size: 48px 48px;
}

/* Animated gradient orbs */
.hero-orb-1,
.hero-orb-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    top: 10%;
    left: -10%;
    background: hsl(158 45% 38% / 0.12);
    animation: float-orb-1 8s ease-in-out infinite;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    bottom: 10%;
    right: -5%;
    background: hsl(50 38% 52% / 0.10);
    animation: float-orb-2 10s ease-in-out infinite;
}

@keyframes float-orb-1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes float-orb-2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-40px, 30px) scale(1.08); }
    66% { transform: translate(25px, -25px) scale(0.92); }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 52rem;
}

/* Avatar */
.hero-avatar-wrapper {
    position: relative;
    margin: 0 auto 2.5rem;
    width: 11rem;
    height: 11rem;
}

.hero-avatar-glow {
    position: absolute;
    inset: -12px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.4;
    animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.05); }
}

.hero-avatar {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid transparent;
    background-image: var(--gradient-primary);
    background-origin: border-box;
    background-clip: padding-box, border-box;
    box-shadow:
        0 0 0 3px hsl(var(--background)),
        var(--shadow-glow);
}

.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* Title */
.hero-title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.05;
    letter-spacing: -0.03em;
}

/* Divider */
.hero-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-divider-line {
    width: 5rem;
    height: 1px;
}

.hero-divider-icon {
    width: 1.25rem;
    height: 1.25rem;
    fill: hsl(var(--primary));
}

/* Subtitle / Typing */
.hero-roles-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.hero-roles-list {
    list-style: none;
    padding: 0;
    padding-inline-start: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    align-items: center;
}

.hero-role-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 1.8rem;
    animation: role-slide-in 0.25s ease-out both;
}

@keyframes role-slide-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hero-role-text {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: hsl(var(--primary));
    margin-left: 3px;
    vertical-align: middle;
    animation: cursor-blink 1s step-end infinite;
    flex-shrink: 0;
}

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

/* Scroll indicator — removed by user request */

/* ============================================
    SECTIONS (General)
============================================ */
.section {
    padding: 3.5rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    font-size: 1.05rem;
    color: hsl(var(--muted-foreground));
    max-width: 500px;
    margin: 0 auto;
}

/* ============================================
    PORTFOLIO SECTION
============================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-card {
    position: relative;
    background: hsl(var(--card) / 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid hsl(var(--border) / 0.3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-spring),
                box-shadow var(--transition-smooth),
                border-color var(--transition-smooth);
}

.portfolio-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 2;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
    border-color: hsl(var(--primary) / 0.2);
}

.portfolio-card:hover::before {
    opacity: 1;
}

.portfolio-image {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--muted) / 0.3);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.portfolio-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, hsl(var(--card) / 0.8) 100%);
    pointer-events: none;
}

.portfolio-image img {
    width: 70%;
    height: 70%;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    filter: drop-shadow(0 4px 12px hsl(var(--background) / 0.3));
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.12) rotate(2deg);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: hsl(var(--background) / 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 1;
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay-content {
    text-align: center;
    transform: translateY(10px);
    transition: transform var(--transition-smooth);
}

.portfolio-card:hover .portfolio-overlay-content {
    transform: translateY(0);
}

.portfolio-overlay-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary) / 0.2);
    border: 1px solid hsl(var(--primary) / 0.3);
    border-radius: 50%;
    color: hsl(var(--primary));
}

.portfolio-info {
    padding: 1.25rem 1.5rem;
    position: relative;
    z-index: 1;
}

.portfolio-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    transition: color var(--transition-smooth);
}

.portfolio-card:hover .portfolio-title {
    color: hsl(var(--primary));
}

.portfolio-subtitle {
    font-size: 0.8rem;
    color: hsl(var(--muted-foreground));
    letter-spacing: 0.03em;
}

/* ============================================
    SKILLS / TECH STACK SECTION — Compact Cards
============================================ */
.skills-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.skill-card {
    position: relative;
    background: hsl(var(--card) / 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid hsl(var(--border) / 0.3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-spring),
                box-shadow var(--transition-smooth),
                border-color var(--transition-smooth);
}

.skill-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--gradient-card-border);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 2;
}

.skill-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: hsl(var(--primary) / 0.2);
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-image {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--muted) / 0.25);
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
}

.skill-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, hsl(var(--card) / 0.6) 100%);
    pointer-events: none;
}

/* SVG wrapper for inline SVGs */
.skill-svg-wrapper {
    width: 60%;
    height: 60%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    filter: drop-shadow(0 2px 8px hsl(var(--background) / 0.3));
}

.skill-svg-wrapper svg {
    width: 100%;
    height: 100%;
}

.skill-card:hover .skill-svg-wrapper {
    transform: scale(1.1);
}

.skill-overlay {
    position: absolute;
    inset: 0;
    background: hsl(var(--background) / 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    z-index: 1;
}

.skill-card:hover .skill-overlay {
    opacity: 1;
}

.skill-overlay-content {
    text-align: center;
    transform: translateY(8px);
    transition: transform var(--transition-smooth);
}

.skill-card:hover .skill-overlay-content {
    transform: translateY(0);
}

.skill-overlay-icon {
    width: 2.5rem;
    height: 2.5rem;
    margin: 0 auto 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary) / 0.2);
    border: 1px solid hsl(var(--primary) / 0.3);
    border-radius: 50%;
    color: hsl(var(--primary));
}

.skill-info {
    padding: 0.75rem 1rem;
    position: relative;
    z-index: 1;
}

.skill-name {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
    transition: color var(--transition-smooth);
    color: hsl(var(--foreground));
}

.skill-card:hover .skill-name {
    color: hsl(var(--primary));
}

.skill-subtitle {
    font-size: 0.7rem;
    color: hsl(var(--muted-foreground));
    letter-spacing: 0.03em;
}

/* ============================================
    PORTFOLIO EMPTY STATE
============================================ */
.portfolio-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    background: hsl(var(--card) / 0.3);
    border: 2px dashed hsl(var(--border) / 0.4);
    border-radius: var(--radius-xl);
}

.portfolio-empty-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary) / 0.1);
    border-radius: 50%;
    color: hsl(var(--primary));
}

.portfolio-empty-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: hsl(var(--foreground));
}

.portfolio-empty-text {
    font-size: 0.9rem;
    color: hsl(var(--muted-foreground));
    max-width: 400px;
    margin: 0 auto;
}

/* ============================================
    ABOUT SECTION
============================================ */
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.about-card {
    padding: 2rem;
    transition: transform var(--transition-spring),
                box-shadow var(--transition-smooth);
}

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

.about-icon-wrapper {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary) / 0.15);
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    transition: background var(--transition-smooth);
}

.about-card:hover .about-icon-wrapper {
    background: hsl(var(--primary) / 0.25);
}

.about-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: hsl(var(--foreground));
}

.about-card-text {
    color: hsl(var(--muted-foreground));
    line-height: 1.8;
    text-align: justify;
    font-size: 0.95rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.stat-card {
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform var(--transition-spring),
                border-color var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: hsl(var(--primary) / 0.3);
}

.stat-card:hover::after {
    width: 60%;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-family: 'Space Grotesk', sans-serif;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: hsl(var(--muted-foreground));
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ============================================
    CONTACT SECTION
============================================ */
.contact-form {
    max-width: 40rem;
    margin: 0 auto;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: hsl(var(--muted-foreground));
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color var(--transition-smooth);
}

.form-group:focus-within .form-label {
    color: hsl(var(--primary));
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: hsl(var(--background) / 0.6);
    border: 1px solid hsl(var(--border) / 0.5);
    border-radius: var(--radius);
    color: hsl(var(--foreground));
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition-smooth),
                box-shadow var(--transition-smooth),
                background var(--transition-smooth);
}

.form-input::placeholder {
    color: hsl(var(--muted-foreground) / 0.5);
}

.form-input:focus {
    outline: none;
    border-color: hsl(var(--primary) / 0.6);
    box-shadow: 0 0 0 3px hsl(var(--primary) / 0.08);
    background: hsl(var(--background) / 0.8);
}

.form-textarea {
    resize: none;
    min-height: 9rem;
}

.form-submit {
    width: 100%;
}

.form-success {
    padding: 1.25rem;
    background: hsl(var(--primary) / 0.1);
    border: 1px solid hsl(var(--primary) / 0.3);
    border-radius: var(--radius);
    text-align: center;
    margin-top: 1rem;
    display: none;
}

.form-success.show {
    display: block;
    animation: fade-in 0.3s ease-out;
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    transition: transform var(--transition-spring),
                box-shadow var(--transition-smooth);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-primary);
    color: hsl(var(--primary-foreground));
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px hsla(158, 45%, 38%, 0.568);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-secondary {
    background: hsl(var(--card) / 0.5);
    backdrop-filter: blur(12px);
    color: hsl(var(--foreground));
    border: 1px solid hsl(var(--border) / 0.4);
}

.btn-secondary:hover {
    border-color: hsl(var(--primary) / 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px hsl(var(--background) / 0.5);
}

/* ============================================
    MODAL
============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: hsl(var(--background) / 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.modal-content {
    position: relative;
    max-width: 52rem;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    background: hsl(var(--card) / 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid hsl(var(--border) / 0.3);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card-hover);
    animation: modal-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Custom scrollbar for modal */
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
    background: hsl(var(--muted));
    border-radius: 3px;
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--background) / 0.7);
    border: 1px solid hsl(var(--border) / 0.5);
    border-radius: 50%;
    cursor: pointer;
    color: hsl(var(--muted-foreground));
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: hsl(var(--primary));
    border-color: hsl(var(--primary) / 0.5);
    background: hsl(var(--primary) / 0.1);
}

.modal-body {
    padding: 2.5rem;
}

.modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.modal-image {
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--muted) / 0.2);
    border-radius: var(--radius);
    margin: 1.5rem 0;
    padding: 1.5rem;
    border: 1px solid hsl(var(--border) / 0.2);
}

.modal-image img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: calc(var(--radius) - 4px);
}

.modal-text {
    color: hsl(var(--muted-foreground));
    line-height: 1.85;
    text-align: justify;
    font-size: 0.95rem;
}

/* ============================================
    SCROLL TO TOP
============================================ */
.scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--card) / 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid hsl(var(--border) / 0.3);
    border-radius: 50%;
    cursor: pointer;
    color: hsl(var(--muted-foreground));
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--transition-smooth),
                visibility var(--transition-smooth),
                transform var(--transition-smooth),
                color var(--transition-smooth),
                border-color var(--transition-smooth),
                background var(--transition-smooth);
    box-shadow: var(--shadow-card);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    color: hsl(var(--primary));
    border-color: hsl(var(--primary) / 0.4);
    background: hsl(var(--primary) / 0.1);
    transform: translateY(-3px);
}

/* ============================================
    FOOTER
============================================ */
footer {
    background: hsl(var(--background-alt));
    border-top: 1px solid hsl(var(--border) / 0.3);
    padding: 4rem 0 2rem;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section {
    text-align: center;
}

.footer-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.25rem;
    color: hsl(var(--foreground));
}

.footer-text {
    color: hsl(var(--muted-foreground));
    line-height: 1.8;
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.footer-social-link {
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid hsl(var(--border) / 0.4);
    border-radius: 50%;
    color: hsl(var(--muted-foreground));
    transition: all var(--transition-smooth);
    text-decoration: none;
}

.footer-social-link:hover {
    color: hsl(var(--primary));
    border-color: hsl(var(--primary) / 0.5);
    background: hsl(var(--primary) / 0.1);
    transform: translateY(-3px);
    box-shadow: 0 4px 16px hsl(var(--primary) / 0.15);
}

.footer-copyright {
    padding-top: 2rem;
    border-top: 1px solid hsl(var(--border) / 0.2);
    text-align: center;
}

.footer-copyright p {
    font-size: 0.8rem;
    color: hsl(var(--muted-foreground));
    letter-spacing: 0.02em;
}

/* ============================================
    ANIMATIONS
============================================ */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== UTILITY ===== */
.hidden {
    display: none !important;
}

/* ============================================
    RESPONSIVE
============================================ */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

    .hero-avatar-wrapper {
        width: 9rem;
        height: 9rem;
    }

    .hero-title {
        font-size: clamp(1.75rem, 5vw, 3rem);
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .modal-body,
    .contact-form {
        padding: 1.75rem 1.25rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-section {
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .scroll-top-btn {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 0 0.75rem;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-avatar-wrapper {
        width: 8rem;
        height: 8rem;
    }
}