/* ========================================
   VICTOR VIEIRA - DATA ANALYST PORTFOLIO
   Theme: Data Noir - Dark, sophisticated
   ======================================== */

/* CSS Variables - Monochrome Theme */
:root {
    --color-bg: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-tertiary: #111111;
    --color-surface: rgba(255, 255, 255, 0.03);
    --color-surface-hover: rgba(255, 255, 255, 0.06);
    --color-border: rgba(255, 255, 255, 0.12);
    --color-border-accent: rgba(255, 255, 255, 0.4);

    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-tertiary: rgba(255, 255, 255, 0.45);

    --color-accent: #ffffff;
    --color-accent-secondary: #888888;
    --color-accent-tertiary: #cccccc;

    --gradient-accent: linear-gradient(135deg, #ffffff 0%, #888888 100%);
    --gradient-bg: radial-gradient(ellipse at top, #111111 0%, #000000 70%);

    --font-display: 'Bebas Neue', sans-serif;
    --font-heading: 'Sora', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

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

body {
    font-family: var(--font-heading);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* Animated Background */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.gradient-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.08);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    bottom: -100px;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.03);
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(50px, -50px) scale(1.1);
    }
    50% {
        transform: translate(-30px, 30px) scale(0.95);
    }
    75% {
        transform: translate(-50px, -20px) scale(1.05);
    }
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) 0;
    z-index: 1000;
    transition: var(--transition-medium);
    background: transparent;
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: 2px;
    transition: var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-accent);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: var(--transition-medium);
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
    flex: 1;
}

.hero-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}

.label-line {
    width: 50px;
    height: 1px;
    background: var(--color-accent);
}

.label-text {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 15vw, 12rem);
    line-height: 0.9;
    letter-spacing: -2px;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
    overflow: hidden;
}

.title-word {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.title-word[data-delay="0"] {
    animation-delay: 0.4s;
}

.title-word[data-delay="1"] {
    animation-delay: 0.5s;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.7s;
}

.typing-text {
    display: inline;
}

.cursor {
    display: inline-block;
    animation: blink 1s step-end infinite;
    color: var(--color-accent);
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.9s;
}

.stat {
    text-align: left;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--color-accent);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-xs);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1.1s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.2);
}

.btn-primary .btn-icon {
    transition: var(--transition-fast);
}

.btn-primary:hover .btn-icon {
    transform: translateX(4px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

/* Hero Visual */
.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    max-width: 600px;
    opacity: 0.6;
    pointer-events: none;
}

.data-viz {
    position: relative;
}

.chart-svg {
    width: 100%;
    height: auto;
}

.chart-area {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
    animation-delay: 1.3s;
}

.chart-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawLine 2s ease forwards;
    animation-delay: 1.5s;
}

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

.chart-dot {
    opacity: 0;
    transform-origin: center;
    animation: popIn 0.4s ease forwards;
}

.chart-dot:nth-child(4) { animation-delay: 2s; }
.chart-dot:nth-child(5) { animation-delay: 2.2s; }
.chart-dot:nth-child(6) { animation-delay: 2.4s; }
.chart-dot:nth-child(7) { animation-delay: 2.6s; }

@keyframes popIn {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        transform: scale(1.5);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
    animation-delay: 1.5s;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% {
        transform: scaleY(1);
        opacity: 1;
    }
    50% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 1;
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-accent);
    opacity: 0.7;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: 2px;
}

.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--color-border), transparent);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-intro {
    font-size: 1.5rem;
    line-height: 1.5;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--color-accent);
    font-weight: 600;
}

.about-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.detail-icon {
    color: var(--color-accent);
}

.detail-label {
    color: var(--color-text-tertiary);
    min-width: 100px;
}

.detail-value {
    color: var(--color-text);
}

/* Image Frame */
.about-image {
    display: flex;
    justify-content: center;
}

.image-frame {
    position: relative;
    width: 280px;
    height: 280px;
}

.frame-corner {
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px solid var(--color-accent);
}

.frame-tl {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

.frame-tr {
    top: 0;
    right: 0;
    border-left: none;
    border-bottom: none;
}

.frame-bl {
    bottom: 0;
    left: 0;
    border-right: none;
    border-top: none;
}

.frame-br {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}

.image-placeholder {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.initials {
    font-family: var(--font-display);
    font-size: 5rem;
    color: var(--color-accent);
    opacity: 0.3;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-md);
    animation: pulse 3s ease-in-out infinite;
}

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

/* Timeline */
.timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.timeline-line {
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--spacing-lg) + 6px);
    top: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.marker-dot {
    width: 12px;
    height: 12px;
    background: var(--color-bg);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.marker-pulse {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: markerPulse 2s ease-in-out infinite;
}

@keyframes markerPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.timeline-content {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-medium);
}

.timeline-content:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-accent);
    transform: translateX(10px);
}

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

.job-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.job-company {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-accent);
}

.job-period {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    white-space: nowrap;
}

.period-icon {
    color: var(--color-accent);
}

.job-highlights {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.job-highlights li {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

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

.job-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-medium);
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.category-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
}

.category-icon svg {
    width: 20px;
    height: 20px;
}

.category-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
}

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

.skill-bar {
    position: relative;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}

.skill-name {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.skill-percent {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
}

.bar-track {
    height: 6px;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: 3px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-bar.animated .bar-fill {
    width: var(--fill-width, 0%);
}

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

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-accent);
}

/* Education Section */
.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.education-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-medium);
}

.education-card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-5px);
}

.card-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
}

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

.card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

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

.card-period {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.card-institution {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-sm);
}

.card-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

.card-status.completed .status-dot {
    animation: none;
    background: var(--color-text-tertiary);
}

.card-status.completed {
    color: var(--color-text-tertiary);
}

@keyframes statusPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.contact-heading {
    font-family: var(--font-display);
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.contact-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text);
    transition: var(--transition-medium);
}

.contact-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-fast);
}

.contact-card:hover .contact-icon {
    background: var(--color-accent);
    color: var(--color-bg);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.contact-value {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    word-break: break-all;
}

/* Footer */
.footer {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: 2px;
}

.footer-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.reveal-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

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

    .about-image {
        order: -1;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-md);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-medium);
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .timeline {
        padding-left: var(--spacing-md);
    }

    .timeline-line {
        left: 10px;
    }

    .timeline-marker {
        left: calc(-1 * var(--spacing-md) + 1px);
    }

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

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

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

    .job-header {
        flex-direction: column;
    }
}