style.css

:root {
    
    --color-primary: #d97757; 
    --color-primary-dark: #b45309;
    --color-primary-light: #fbbf24;
    --color-accent: #78716c; 
    --color-accent-dark: #57534e;
    --color-accent-light: #a8a29e;
    
    
    --color-background: #faf7f2; 
    --color-surface: #ffffff;
    --color-surface-light: #f5f5f4;
    --color-border: #e7e5e4;
    
    
    --color-text-primary: #1c1917;
    --color-text-secondary: #57534e;
    --color-text-muted: #a8a29e;
    
    
    --gradient-primary: linear-gradient(135deg, #d97757 0%, #f59e0b 100%);
    --gradient-accent: linear-gradient(135deg, #78716c 0%, #a8a29e 100%);
    --gradient-text: linear-gradient(135deg, #d97757 0%, #f59e0b 100%);
    
    
    --shadow-sm: 0 1px 2px 0 rgba(28, 25, 23, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(28, 25, 23, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(28, 25, 23, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(28, 25, 23, 0.1);
    --shadow-glow: 0 0 40px rgba(217, 119, 87, 0.2);
}


[data-theme="dark"] {
    
    --color-primary: #8fa87a; 
    --color-primary-dark: #7a9266;
    --color-primary-light: #a3b98f;
    --color-accent: #9ca3af; 
    --color-accent-dark: #6b7280;
    --color-accent-light: #d1d5db;
    
    
    --color-background: #1a1d23; 
    --color-surface: #252a33; 
    --color-surface-light: #2f3542;
    --color-border: #2f3542;
    
    
    --color-text-primary: #e8e9eb; 
    --color-text-secondary: #d1d5db;
    --color-text-muted: #9ca3af; 
    
    
    --gradient-primary: linear-gradient(135deg, #8fa87a 0%, #a3b98f 100%);
    --gradient-accent: linear-gradient(135deg, #9ca3af 0%, #d1d5db 100%);
    --gradient-text: linear-gradient(135deg, #8fa87a 0%, #a3b98f 100%);
    
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(143, 168, 122, 0.2);
}


:root, [data-theme="dark"] {
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    
    --transition-fast: 150ms;
    --transition-base: 200ms;
    --transition-slow: 300ms;
    --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
}


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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


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


.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}



.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base) var(--ease-default);
}

.header.scrolled {
    background: rgba(15, 15, 15, 0.95);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: var(--text-2xl);
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.theme-toggle {
    background: var(--color-surface-light);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-default);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    background: var(--color-surface);
}


[data-theme="dark"] .theme-toggle {
    background: rgba(143, 168, 122, 0.15);
    border: 1px solid rgba(143, 168, 122, 0.3);
    color: var(--color-text-primary);
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(143, 168, 122, 0.25);
    border-color: var(--color-primary);
}

.lang-toggle {
    background: var(--color-surface-light);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-default);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-primary);
}

.lang-toggle:hover {
    border-color: var(--color-primary);
    background: var(--color-surface);
}


[data-theme="dark"] .lang-toggle {
    background: rgba(143, 168, 122, 0.15);
    border: 1px solid rgba(143, 168, 122, 0.3);
    color: var(--color-text-primary);
}

[data-theme="dark"] .lang-toggle:hover {
    background: rgba(143, 168, 122, 0.25);
    border-color: var(--color-primary);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: color var(--transition-base) var(--ease-default);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base) var(--ease-default);
}

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


:not([data-theme="dark"]) .nav-link.active {
    color: #ffffff;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--text-xl);
    cursor: pointer;
    padding: var(--space-2);
}

.menu-toggle:hover {
    color: var(--color-primary);
}



.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base) var(--ease-default);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(143, 168, 122, 0.3);
}


[data-theme="dark"] .btn-primary {
    color: #1a1d23;
}

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

.btn-secondary:hover {
    background: var(--color-surface);
    border-color: var(--color-primary);
}


[data-theme="dark"] .btn-secondary {
    background: rgba(143, 168, 122, 0.15);
    color: var(--color-text-primary);
    border: 1px solid rgba(143, 168, 122, 0.3);
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(143, 168, 122, 0.25);
    border-color: var(--color-primary);
}

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

.btn-outline:hover {
    border-color: var(--color-primary);
    background: rgba(143, 168, 122, 0.1);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

.ml-2 {
    margin-left: var(--space-2);
}



.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    padding-bottom: var(--space-10);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: var(--color-primary-light);
    bottom: 20%;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-30px) scale(1.1);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    display: flex;
    flex-direction: column;
    margin-top: 3rem;
    
    --hero-title-gap: clamp(1rem, 2vw, 1.75rem);
    --hero-description-gap: clamp(1.25rem, 2.5vw, 2rem);
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--hero-title-gap);
}

.hero-title > span {
    
    opacity: 1;
}


.hero:not(.hero-animated) .hero-title > span {
    opacity: 0;
}

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

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--hero-description-gap);
    max-width: 500px;
    
    opacity: 1;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    
    opacity: 1;
}


.hero:not(.hero-animated) .hero-cta {
    opacity: 0;
}


@media (min-width: 1024px) {
    .hero-cta {
        flex-wrap: nowrap;
    }
}




@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}


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


.hero-animated .hero-title > span:first-child {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.1s;
    will-change: opacity, transform;
}

.hero-animated .hero-title .gradient-text {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.3s;
    will-change: opacity, transform;
}

.hero-animated .hero-description {
    opacity: 1;
    transform: translateY(0);
    
}

.hero-animated .hero-cta {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.75s;
    will-change: opacity, transform;
}

.hero-animated .hero-visual {
    opacity: 0;
    transform: translateX(40px);
    animation: slideInRight 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.3s;
    will-change: opacity, transform;
}


.hero-animated .hero-visual.animation-complete .hero-photo {
    animation: floatPhoto 5s ease-in-out infinite;
}


@media (prefers-reduced-motion: reduce) {
    .hero-title > span,
    .hero-description,
    .hero-cta,
    .hero-visual {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        will-change: auto !important;
    }
}

.hero-visual {
    
    opacity: 1;
}


.hero:not(.hero-animated) .hero-visual {
    opacity: 0;
}

.hero-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-photo {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-glow);
    object-fit: cover;
}

.code-block {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-4);
    background: var(--color-surface-light);
    border-bottom: 1px solid var(--color-border);
}

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

.code-dot.red {
    background: #ef4444;
}

.code-dot.yellow {
    background: #f59e0b;
}

.code-dot.green {
    background: #10b981;
}

.code-content {
    padding: var(--space-6);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.8;
    overflow-x: auto;
    color: var(--color-text-secondary);
}

.code-content .keyword {
    color: var(--color-primary);
}

.code-content .class {
    color: var(--color-accent);
}

.code-content .function {
    color: var(--color-primary-light);
}

.code-content .string {
    color: #10b981;
}

.code-content .comment {
    color: var(--color-text-muted);
}

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



section {
    padding: var(--space-24) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-subtitle {
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-cta {
    text-align: center;
    margin-top: var(--space-12);
}



.expertise {
    background: var(--color-surface);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.expertise-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base) var(--ease-default);
}

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

.expertise-icon {
    width: 60px;
    height: 60px;
    background: var(--color-surface-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    color: var(--color-primary);
    margin-bottom: var(--space-6);
}


.expertise-card:has(.fa-chart-line) .expertise-icon {
    color: #0ea5e9;
}

.expertise-card:has(.fa-brain) .expertise-icon {
    color: #8b5cf6;
}

.expertise-card:has(.fa-eye) .expertise-icon {
    color: #3b82f6;
}

.expertise-card:has(.fa-language) .expertise-icon {
    color: #10b981;
}

.expertise-card:has(.fa-wand-magic-sparkles) .expertise-icon {
    color: #ec4899;
}

.expertise-card:has(.fa-database) .expertise-icon {
    color: #f59e0b;
}

.expertise-card:has(.fa-robot) .expertise-icon {
    color: #06b6d4;
}

.expertise-card h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.expertise-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}



.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-base) var(--ease-default);
}

.project-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    aspect-ratio: 16/9;
    background: var(--color-surface-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow) var(--ease-default);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-placeholder {
    font-size: var(--text-6xl);
    color: rgba(255, 255, 255, 0.3);
}

.project-content {
    padding: var(--space-8);
}

.project-tags {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.tag {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(143, 168, 122, 0.15);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
}

.project-card h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.project-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.project-metrics {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-6);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--color-accent);
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-links {
    display: flex;
    gap: var(--space-3);
}



.skills {
    background: var(--color-surface);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
}

.skill-category {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
}

.skill-category h3 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--color-primary);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    font-weight: 500;
}

.skill-bar {
    height: 8px;
    background: var(--color-surface-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
}




.skill-category[data-tilt] {
    transition: border-color 0.35s ease,
                box-shadow 0.35s ease,
                transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    cursor: default;
}

.skill-category[data-tilt]:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary),
                var(--shadow-glow),
                var(--shadow-xl);
}


.skill-category[data-tilt]:hover .skill-progress {
    position: relative;
    overflow: hidden;
}

.skill-category[data-tilt]:hover .skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: -60%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.45),
        transparent
    );
    animation: skillShimmer 1.4s ease infinite;
}

@keyframes skillShimmer {
    0%   { left: -60%; }
    100% { left: 120%; }
}


.skill-category[data-tilt]:hover .skill-item {
    animation: skillItemPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.skill-category[data-tilt]:hover .skill-item:nth-child(1) { animation-delay: 0.00s; }
.skill-category[data-tilt]:hover .skill-item:nth-child(2) { animation-delay: 0.06s; }
.skill-category[data-tilt]:hover .skill-item:nth-child(3) { animation-delay: 0.12s; }

@keyframes skillItemPop {
    from { transform: translateY(4px) scale(0.98); opacity: 0.6; }
    to   { transform: translateY(0)   scale(1);    opacity: 1;   }
}


.skill-category[data-tilt]:hover h3 {
    text-shadow: 0 0 12px rgba(143, 168, 122, 0.6);
    transition: text-shadow 0.35s ease;
}


.skill-category[data-tilt]:hover .skill-info span:last-child {
    color: var(--color-primary);
    transition: color 0.3s ease;
}



.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.highlight {
    text-align: center;
}

.highlight-number {
    display: block;
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--color-primary);
}

.highlight-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-image {
    width: 400px;
    height: 400px;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
}

.about-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}



.about-photo-float {
    
}

.about-image {
    animation: floatPhoto 5s ease-in-out infinite;
    animation-delay: 0.5s;
}

.image-placeholder {
    font-size: var(--text-6xl);
    color: rgba(255, 255, 255, 0.3);
}



.certificates {
    background: var(--color-background);
}

.about {
    background: var(--color-surface);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.certificate-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0;
    transition: all var(--transition-base) var(--ease-default);
}

.certificate-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.certificate-image {
    aspect-ratio: 16/9;
    background: var(--color-surface-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow) var(--ease-default);
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.05);
}

.certificate-content {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.certificate-content h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
}

.certificate-content p {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
}

.certificate-date {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.certificate-status {
    font-size: var(--text-xs);
    font-weight: 600;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    display: inline-block;
}

.certificate-status.completed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent);
}

.certificate-status.in-progress {
    background: rgba(217, 119, 87, 0.1);
    color: var(--color-primary);
}





.certificate-card[data-tilt]:hover {
    transform: none;           
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary),
                var(--shadow-glow),
                var(--shadow-xl);
}


.certificate-card[data-tilt]:hover .certificate-image img {
    transform: scale(1.08);
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}


.certificate-image {
    position: relative;
}

.certificate-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent 0%,
        rgba(255, 255, 255, 0.35) 50%,
        transparent 100%
    );
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.certificate-card[data-tilt]:hover .certificate-image::after {
    opacity: 1;
    animation: certShine 0.65s ease forwards;
}

@keyframes certShine {
    from { left: -75%; }
    to   { left: 125%;  }
}


.certificate-card[data-tilt] .certificate-content {
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.certificate-card[data-tilt]:hover .certificate-content {
    transform: translateY(-4px);
}


.certificate-card[data-tilt]:hover .certificate-content h3 {
    color: var(--color-primary);
    transition: color 0.3s ease;
}


.certificate-card[data-tilt]:hover .certificate-status.completed {
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    animation: certBadgePulse 1.2s ease-in-out infinite;
}

@keyframes certBadgePulse {
    0%, 100% { box-shadow: 0 0 6px  rgba(16, 185, 129, 0.4); }
    50%       { box-shadow: 0 0 14px rgba(16, 185, 129, 0.7); }
}



.contact {
    background: var(--color-background);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.contact-item {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--color-surface-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    color: var(--color-primary);
    flex-shrink: 0;
}


.contact-item:has(.fa-envelope) .contact-icon {
    color: #ea4335;
}

.contact-item:has(.fa-linkedin) .contact-icon {
    color: #0077b5;
}

.contact-item:has(.fa-github) .contact-icon {
    color: #333333;
}


[data-theme="dark"] .contact-item:has(.fa-github) .contact-icon {
    color: #ffffff;
}

.contact-item:has(.fa-whatsapp) .contact-icon {
    color: #25d366;
}

.contact-item:has(.fa-location-dot) .contact-icon {
    color: #ea4335;
}

.contact-details h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.contact-details a,
.contact-details span {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.contact-details a:hover {
    color: var(--color-primary);
}

.contact-form {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}



.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-brand .logo-text {
    font-size: var(--text-3xl);
}

.footer-brand p {
    color: var(--color-text-secondary);
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
    transition: all var(--transition-base);
}

.social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-4px);
}


.social-link[href*="linkedin"]:hover {
    border-color: #0077b5;
    color: #0077b5;
}

.social-link[href*="github"]:hover {
    border-color: #333333;
    color: #333333;
}


[data-theme="dark"] .social-link[href*="github"] {
    color: #e6e6e6;
}

[data-theme="dark"] .social-link[href*="github"]:hover {
    border-color: #ffffff;
    color: #ffffff;
}

.social-link[href*="mailto"]:hover {
    border-color: #ea4335;
    color: #ea4335;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}



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

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

[dir="rtl"] .hero-content {
    grid-template-columns: 1fr 1fr;
}

[dir="rtl"] .hero-visual {
    order: -1;
}

[dir="rtl"] .about-content {
    grid-template-columns: 1fr 1fr;
}

[dir="rtl"] .about-visual {
    order: -1;
}

[dir="rtl"] .contact-content {
    grid-template-columns: 1fr 1fr;
}


[dir="rtl"] .contact-info {
    order: 2;
}

[dir="rtl"] .contact-form {
    order: 1;
}

[dir="rtl"] .ml-2 {
    margin-left: 0;
    margin-right: var(--space-2);
}

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






@media (max-width: 1280px) {
    .hero-title {
        font-size: clamp(2.2rem, 4vw, 3.5rem);
    }
    .container {
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}


@media (max-width: 1024px) {
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-description {
        margin-left: auto;
        margin-right: auto;
        max-width: 600px;
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-visual {
        max-width: 360px;
        margin: 0 auto;
    }

    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
    .about-visual {
        order: -1;
        max-width: 340px;
        margin: 0 auto;
    }

    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

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

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

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


@media (max-width: 768px) {
    
    .nav-actions {
        order: 3;
    }
    .theme-toggle {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: var(--space-6) var(--space-8);
        gap: var(--space-5);
        transform: translateY(-150%);
        transition: transform var(--transition-base);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }
    .nav-links.active {
        transform: translateY(0);
    }
    .menu-toggle {
        display: block;
    }

    
    .hero-title {
        font-size: var(--text-4xl);
    }
    .section-title {
        font-size: var(--text-3xl);
    }
    .hero-role {
        font-size: var(--text-lg);
        justify-content: center;
    }

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

    
    .about-highlights {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    
    .footer-content {
        flex-direction: column;
        gap: var(--space-8);
        text-align: center;
    }
    .footer-social {
        justify-content: center;
    }

    
    .section {
        padding: var(--space-16) 0;
    }

    
    .contact-items {
        gap: var(--space-4);
    }
}


@media (max-width: 480px) {
    
    .container {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }

    
    .hero {
        padding-top: 100px;
        padding-bottom: var(--space-12);
        align-items: flex-start;
    }

    
    .hero-title {
        font-size: var(--text-3xl);
    }
    .hero-description {
        font-size: var(--text-sm);
    }
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    .hero-visual {
        max-width: 260px;
    }
    .hero-image-container {
        width: 220px;
        height: 220px;
    }

    
    .section-title {
        font-size: var(--text-2xl);
    }
    .section-subtitle {
        font-size: var(--text-xs);
    }

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

    
    .about-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
    .highlight {
        padding: var(--space-4);
    }
    .highlight-number {
        font-size: var(--text-2xl);
    }

    
    .project-metrics {
        flex-direction: column;
        gap: var(--space-3);
    }
    .project-links {
        flex-direction: column;
    }
    .project-links .btn {
        width: 100%;
        justify-content: center;
    }

    
    .nav-links {
        padding: var(--space-5) var(--space-4);
        gap: var(--space-4);
    }

    
    .step-switcher__btn {
        width: 38px;
        height: 38px;
        font-size: var(--text-xs);
    }

    
    .footer-bottom p {
        font-size: var(--text-xs);
    }

    
    .cv-modal-box {
        max-height: 95vh;
        border-radius: var(--radius-xl);
    }
    .cv-iframe {
        min-height: 300px;
    }
    .cv-modal-header,
    .cv-modal-footer,
    .cv-modal-subtitle {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    .cv-modal-preview {
        margin-left: var(--space-3);
        margin-right: var(--space-3);
    }
    .cv-download-btn {
        padding: var(--space-3) var(--space-6);
        width: 100%;
        justify-content: center;
    }
}


@media (max-width: 360px) {
    .hero {
        padding-top: 90px;
    }
    .hero-title {
        font-size: 1.75rem;
    }
    .hero-role {
        font-size: var(--text-base);
        flex-wrap: wrap;
        justify-content: center;
    }
    .about-highlights {
        grid-template-columns: 1fr;
    }
    .nav-logo .logo-text {
        font-size: var(--text-base);
    }
    .expertise-card {
        padding: var(--space-5);
    }
    .skill-category {
        padding: var(--space-5);
    }
}


@media (hover: none) and (pointer: coarse) {
    [data-tilt] {
        transform: none !important;
        transition: box-shadow 0.3s ease, border-color 0.3s ease !important;
    }
    [data-tilt]::before {
        display: none;
    }
    
    [data-tilt]:active {
        border-color: var(--color-primary);
        box-shadow: var(--shadow-glow);
    }
}


@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--space-8) 0;
    }
    .hero-visual {
        display: none;
    }
    .nav-links {
        top: 60px;
        padding: var(--space-3) var(--space-6);
        gap: var(--space-3);
    }
    .cv-modal-box {
        max-height: 98vh;
    }
    .cv-iframe {
        min-height: 200px;
    }
}


@media print {
    .nav, .hero-cta, .footer, .step-switcher-wrap,
    [data-tilt]::before, .cv-modal-overlay {
        display: none !important;
    }
    body {
        background: #fff;
        color: #000;
    }
    .section {
        padding: 1rem 0;
        break-inside: avoid;
    }
}



.cv-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(10, 12, 16, 0.85);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: cvOverlayIn 0.25s ease forwards;
}

.cv-modal-overlay.is-closing {
    animation: cvOverlayOut 0.22s ease forwards;
}

@keyframes cvOverlayIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes cvOverlayOut {
    from { opacity: 1; }
    to   { opacity: 0; }
}

.cv-modal-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 760px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 32px 80px rgba(0,0,0,0.6), var(--shadow-glow);
    animation: cvBoxIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    overflow: hidden;
}

.cv-modal-overlay.is-closing .cv-modal-box {
    animation: cvBoxOut 0.22s ease forwards;
}

@keyframes cvBoxIn {
    from { opacity: 0; transform: translateY(30px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0)    scale(1);    }
}
@keyframes cvBoxOut {
    from { opacity: 1; transform: translateY(0)    scale(1);    }
    to   { opacity: 0; transform: translateY(20px) scale(0.97); }
}


.cv-modal-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.cv-modal-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.cv-modal-title {
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-text-primary);
    flex: 1;
}

.cv-modal-close {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.cv-modal-close:hover {
    background: var(--color-primary);
    color: #0d0f12;
    border-color: var(--color-primary);
}


.cv-modal-subtitle {
    padding: var(--space-3) var(--space-6) 0;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    flex-shrink: 0;
}


.cv-modal-preview {
    flex: 1;
    min-height: 0;
    margin: var(--space-4) var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    position: relative;
}

.cv-iframe {
    width: 100%;
    height: 100%;
    min-height: 420px;
    border: none;
    display: block;
}

.cv-iframe-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    background: var(--color-background);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}


.cv-modal-footer {
    padding: var(--space-4) var(--space-6) var(--space-5);
    display: flex;
    justify-content: center;
    flex-shrink: 0;
    border-top: 1px solid var(--color-border);
}

.cv-download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-10);
    background: var(--gradient-primary);
    color: #0d0f12;
    font-weight: 700;
    font-size: var(--text-sm);
    letter-spacing: 0.06em;
    border-radius: var(--radius-lg);
    text-decoration: none;
    box-shadow: var(--shadow-glow);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s;
}

.cv-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 28px rgba(143, 168, 122, 0.55);
    opacity: 0.92;
}

.cv-download-btn i {
    font-size: 1rem;
}


@media (max-width: 600px) {
    .cv-modal-box {
        max-height: 95vh;
        border-radius: var(--radius-xl);
    }
    .cv-iframe {
        min-height: 300px;
    }
    .cv-modal-header,
    .cv-modal-footer,
    .cv-modal-subtitle {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
    .cv-modal-preview {
        margin-left: var(--space-3);
        margin-right: var(--space-3);
    }
}