/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Color Palette */
    --bg-base: #030712;
    --bg-surface: rgba(15, 23, 42, 0.55);
    --bg-surface-opaque: #0f172a;
    --bg-card: rgba(17, 25, 40, 0.65);
    
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-glow: rgba(37, 99, 235, 0.15);
    
    --color-cyan: #06b6d4;
    --color-cyan-hover: #0891b2;
    --color-cyan-glow: rgba(6, 182, 212, 0.15);
    
    --color-gradient-start: #2563eb;
    --color-gradient-end: #06b6d4;
    
    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-glow: rgba(59, 130, 246, 0.35);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-title: 'Outfit', sans-serif;
    
    /* Transitions & Offsets */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    
    --container-max-width: 1200px;
    --header-height: 80px;
    --card-border-radius: 16px;
}

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

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

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

/* ==========================================================================
   BACKGROUND ANIMATION ORBS
   ========================================================================== */
.bg-orb-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -10;
    pointer-events: none;
    overflow: hidden;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(130px);
    opacity: 0.15;
    mix-blend-mode: screen;
    animation: floatOrb 25s infinite alternate ease-in-out;
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 80%);
}

.orb-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--color-cyan) 0%, transparent 80%);
    animation-delay: -5s;
}

.orb-3 {
    top: 40%;
    left: 45%;
    width: 35vw;
    height: 35vw;
    background: radial-gradient(circle, #4f46e5 0%, transparent 80%);
    animation-delay: -12s;
    opacity: 0.1;
}

@keyframes floatOrb {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(80px, 60px) scale(1.15);
    }
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

p {
    color: var(--text-muted);
}

/* ==========================================================================
   UTILITY CLASSES & BUTTONS
   ========================================================================== */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--border-color);
    border-radius: var(--card-border-radius);
    transition: var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-color-glow);
    box-shadow: 0 10px 30px -10px var(--color-primary-glow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    font-family: var(--font-title);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: 0 0 15px var(--color-primary);
    transform: translateY(-2px);
}

.btn-gradient {
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    color: var(--text-primary);
    border: none;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-gradient-end) 0%, var(--color-gradient-start) 100%);
    z-index: -1;
    opacity: 0;
    transition: var(--transition-fast);
}

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

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px -6px rgba(59, 130, 246, 0.5);
}

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

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--color-cyan);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-social {
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-linkedin {
    background-color: rgba(10, 102, 194, 0.15);
    border-color: rgba(10, 102, 194, 0.4);
}

.btn-linkedin:hover {
    background-color: #0a66c2;
    border-color: #0a66c2;
    box-shadow: 0 0 15px rgba(10, 102, 194, 0.4);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background-color: rgba(37, 211, 102, 0.15);
    border-color: rgba(37, 211, 102, 0.4);
}

.btn-whatsapp:hover {
    background-color: #25d366;
    border-color: #25d366;
    box-shadow: 0 0 15px rgba(37, 211, 102, 0.4);
    transform: translateY(-2px);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 100;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(3, 7, 18, 0.75);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    height: 70px;
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.nav-logo {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
    transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-item-btn {
    list-style: none;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    padding-top: calc(var(--header-height) + 40px);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    width: 100%;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hero-subtitle {
    color: var(--color-cyan);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 50%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-tagline {
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    height: 40px;
}

.static-text {
    margin-right: 8px;
}

.typed-text {
    color: var(--color-cyan);
    background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.cursor {
    display: inline-block;
    background-color: var(--color-cyan);
    width: 3px;
    margin-left: 2px;
    animation: blink 0.8s infinite;
}

@keyframes blink {
    50% { background-color: transparent; }
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 12px;
    max-width: 550px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-top: 10px;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card-glass {
    position: relative;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 16px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    width: 100%;
    max-width: 380px;
    aspect-ratio: 0.9;
    box-shadow: 0 20px 40px -15px rgba(0,0,0,0.5);
    transition: var(--transition-normal);
}

.profile-card-glass:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 30px 60px -20px var(--color-cyan-glow);
    transform: scale(1.02) translateY(-5px);
}

.profile-image-container {
    width: 100%;
    height: 100%;
    position: relative;
    border-radius: 18px;
    overflow: hidden;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.profile-badge {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    padding: 8px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    width: max-content;
}

.profile-badge i {
    color: var(--color-cyan);
}

.profile-badge span {
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-title);
    letter-spacing: 0.02em;
}

/* ==========================================================================
   STATS SECTION
   ========================================================================== */
.stats-section {
    padding: 60px 0;
    position: relative;
}

.stats-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
}

.stat-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-cyan);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-number, .stat-number-percent {
    font-family: var(--font-title);
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--text-primary) 40%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
    vertical-align: super;
    margin-left: 2px;
    background: linear-gradient(135deg, var(--text-primary) 40%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-number-percent::after {
    content: '%';
    font-size: 1.5rem;
    vertical-align: super;
    margin-left: 2px;
    background: linear-gradient(135deg, var(--text-primary) 40%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

/* ==========================================================================
   SECTION HEADER COMMON STYLE
   ========================================================================== */
.scroll-section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-subtitle {
    color: var(--color-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 8px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.title-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
    border-radius: 2px;
    margin-top: 15px;
}

/* ==========================================================================
   ABOUT ME SECTION
   ========================================================================== */
.about-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.about-text-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-text-content h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.about-highlights-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 10px;
}

.highlight-item {
    display: flex;
    gap: 16px;
}

.highlight-icon {
    font-size: 1.4rem;
    color: var(--color-cyan);
    margin-top: 4px;
}

.highlight-item h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
    font-family: var(--font-title);
}

.highlight-item p {
    font-size: 0.9rem;
}

.about-info-box {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-info-box h3 {
    font-size: 1.3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.info-list li {
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px dashed rgba(255,255,255,0.05);
    padding-bottom: 8px;
}

.info-list li strong {
    color: var(--text-primary);
}

.info-list li:last-child {
    border: none;
}

.info-footer {
    margin-top: 10px;
}

/* ==========================================================================
   SKILLS SECTION
   ========================================================================== */
.skills-grid {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.skill-card {
    padding: 30px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.skill-icon {
    font-size: 2.2rem;
    color: var(--color-cyan);
    margin-bottom: 6px;
    transition: var(--transition-fast);
}

.skill-card:hover .skill-icon {
    transform: scale(1.15) rotate(5deg);
    color: var(--color-primary);
}

.skill-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.skill-card p {
    font-size: 0.88rem;
    line-height: 1.5;
}

/* ==========================================================================
   EXPERIENCE SECTION (TIMELINE)
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-cyan) 100%);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.right {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    right: -8px;
    top: 25px;
    background-color: var(--bg-base);
    border: 3px solid var(--color-cyan);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px var(--color-cyan);
    transition: var(--transition-fast);
}

.timeline-item.right .timeline-dot {
    left: -8px;
}

.timeline-item:hover .timeline-dot {
    background-color: var(--color-cyan);
    transform: scale(1.3);
}

.timeline-content {
    padding: 28px;
    position: relative;
}

.timeline-date {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(37,99,235,0.15) 0%, rgba(6,182,212,0.15) 100%);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-cyan);
    margin-bottom: 12px;
}

.timeline-content h3 {
    font-size: 1.35rem;
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 0.95rem;
    color: var(--color-cyan);
    font-weight: 500;
    margin-bottom: 16px;
}

.timeline-duties {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-duties li {
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    gap: 8px;
}

.timeline-duties li i {
    color: var(--color-cyan);
    font-size: 0.75rem;
    margin-top: 5px;
    flex-shrink: 0;
}

/* ==========================================================================
   PORTFOLIO SECTION
   ========================================================================== */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    padding: 0 24px;
}

.filter-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 10px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-title);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-cyan) 100%);
    color: var(--text-primary);
    border-color: transparent;
    box-shadow: 0 5px 15px -3px rgba(6, 182, 212, 0.4);
}

.portfolio-grid {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.portfolio-item {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.portfolio-item.hidden {
    display: none;
}

.project-img-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1.5;
    overflow: hidden;
    border-radius: calc(var(--card-border-radius) - 1px) calc(var(--card-border-radius) - 1px) 0 0;
}

.project-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(3, 7, 18, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-links {
    display: flex;
    gap: 12px;
}

.project-icon-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-cyan);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.project-icon-link:hover {
    background-color: var(--color-primary);
    transform: scale(1.1);
}

.portfolio-item:hover .project-img-wrapper img {
    transform: scale(1.08);
}

.portfolio-item:hover .project-overlay {
    opacity: 1;
}

.project-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

.project-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--color-cyan);
    letter-spacing: 0.08em;
}

.project-info h3 {
    font-size: 1.25rem;
}

.project-info p {
    font-size: 0.88rem;
    line-height: 1.5;
}

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.testimonial-quote {
    font-size: 2.2rem;
    color: var(--color-cyan);
    opacity: 0.2;
    line-height: 1;
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
    flex-grow: 1;
}

.testimonial-user {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37,99,235,0.15) 0%, rgba(6,182,212,0.15) 100%);
    border: 1px solid rgba(6, 182, 212, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-cyan);
}

.user-info h4 {
    font-size: 1rem;
    font-weight: 600;
}

.user-info p {
    font-size: 0.8rem;
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 0.85rem;
    display: flex;
    gap: 4px;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-details h3 {
    font-size: 1.8rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-detail-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    text-decoration: none;
}

.detail-icon {
    font-size: 1.6rem;
    color: var(--color-cyan);
}

.contact-detail-card h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.contact-detail-card p {
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.contact-detail-card:hover p {
    color: var(--text-primary);
}

.contact-social-buttons {
    display: flex;
    gap: 16px;
    margin-top: 10px;
}

.contact-form-wrapper {
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-title);
    font-size: 0.88rem;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    background: rgba(3, 7, 18, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 18px;
    font-family: var(--font-sans);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--color-cyan);
    outline: none;
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: #020617;
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    position: relative;
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
}

.footer-logo {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.03em;
}

.footer-left p {
    font-size: 0.9rem;
}

.footer-socials {
    display: flex;
    gap: 16px;
    list-style: none;
}

.footer-socials a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-socials a:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-cyan) 100%);
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 24px 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
}

/* ==========================================================================
   SCROLL TO TOP & TOAST
   ========================================================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-cyan) 100%);
    border: none;
    color: var(--text-primary);
    font-size: 1.15rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    box-shadow: 0 5px 15px -3px rgba(6, 182, 212, 0.4);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 20px -3px rgba(6, 182, 212, 0.6);
}

/* Toast styling */
.toast {
    position: fixed;
    bottom: 40px;
    left: 40px;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 12px;
    padding: 16px 24px;
    box-shadow: 0 10px 30px -5px rgba(0,0,0,0.5);
    transition: var(--transition-normal);
}

.toast.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.3);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-content i {
    color: #22c55e;
    font-size: 1.25rem;
}

.toast.error #toast-icon {
    color: #ef4444;
}

.toast-message {
    font-family: var(--font-title);
    font-size: 0.95rem;
    font-weight: 500;
}

/* ==========================================================================
   SCROLL ANIMATIONS (Intersection Observer classes)
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Delay modifiers */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* ==========================================================================
   RESPONSIVE DESIGN (BREAKPOINTS)
   ========================================================================== */

/* Tablet & Mobile Landscape (< 1024px) */
@media screen and (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

/* Tablet & Mobile Portrait (< 768px) */
@media screen and (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: rgba(3, 7, 18, 0.95);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 40px;
        transition: var(--transition-normal);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-tagline {
        justify-content: center;
    }
    
    .hero-description {
        margin: 0 auto;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .profile-card-glass {
        margin: 0 auto;
    }
    
    .about-highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 55px;
        padding-right: 0;
    }
    
    .timeline-item.right {
        left: 0;
    }
    
    .timeline-dot {
        left: 23px !important;
        right: auto !important;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-container {
        grid-template-columns: 1fr;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-left {
        max-width: 100%;
    }
}

/* Micro Devices (< 480px) */
@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2.3rem;
    }
    
    .hero-tagline {
        font-size: 1.4rem;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-social-buttons {
        flex-direction: column;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-ctas .btn {
        width: 100%;
    }
}