/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-slate-50: #f8fafc;
    --color-slate-100: #f1f5f9;
    --color-slate-200: #e2e8f0;
    --color-slate-300: #cbd5e1;
    --color-slate-400: #94a3b8;
    --color-slate-600: #475569;
    --color-slate-700: #334155;
    --color-slate-800: #1e293b;
    --color-slate-900: #0f172a;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-cyan-100: #cffafe;
    --color-cyan-200: #a5f3fc;
    --color-cyan-400: #22d3ee;
    --color-cyan-500: #06b6d4;
    --color-cyan-600: #0891b2;
    --color-cyan-800: #155e75;
    --color-cyan-900: #164e63;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--color-slate-900);
    background-color: var(--color-slate-50);
}

body.dark {
    background-color: var(--color-slate-900);
    color: var(--color-white);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.contact-container {
    max-width: 896px;
    margin: 0 auto;
    padding: 0 1rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.tech-icon {
    transition: all 0.3s ease;
}

.tech-icon:hover {
    transform: scale(1.1);
}

/* Navigation */
.nav {
    position: fixed;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    z-index: 50;
}

body.dark .nav {
    background-color: rgba(30, 41, 59, 0.9);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-slate-900);
}

body.dark .logo {
    color: var(--color-white);
}

.nav-links {
    display: none;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    color: var(--color-slate-700);
    text-decoration: none;
    transition: color 0.3s ease;
}

body.dark .nav-link {
    color: var(--color-slate-300);
}

.nav-link:hover {
    color: var(--color-cyan-500);
}

.theme-toggle {
    padding: 0.5rem;
    border-radius: 0.5rem;
    background-color: var(--color-slate-100);
    border: none;
    cursor: pointer;
}

body.dark .theme-toggle {
    background-color: var(--color-slate-700);
}

.icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-slate-800);
}

body.dark .icon {
    color: var(--color-slate-200);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 64px;
}

.hero-content {
    text-align: center;
    padding: 5rem 0;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

.text-cyan {
    color: var(--color-cyan-400);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-slate-300);
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.875rem;
    }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-slate-400);
    margin-bottom: 2rem;
    max-width: 672px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background-color: var(--color-cyan-500);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-cyan-600);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-slate-900);
}

.btn-secondary:hover {
    background-color: var(--color-slate-100);
}

.btn-outline {
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

.btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-slate-900);
}

.hero-footer {
    color: var(--color-slate-400);
}

.tagline {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

/* Section Styles */
.section {
    padding: 5rem 0;
}

.bg-white {
    background-color: var(--color-white);
}

body.dark .bg-white {
    background-color: var(--color-slate-900);
}

.bg-slate {
    background-color: var(--color-slate-50);
}

body.dark .bg-slate {
    background-color: var(--color-slate-800);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 3rem;
    text-align: center;
}

body.dark .section-title {
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 1.5rem;
    text-align: center;
}

body.dark .section-subtitle {
    color: var(--color-white);
}

/* About Section */
.about-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.about-text {
    font-size: 1.125rem;
    color: var(--color-slate-700);
    margin-bottom: 1.5rem;
}

body.dark .about-text {
    color: var(--color-slate-300);
}

.languages-section {
    margin-top: 1rem;
}

.subsection-title {
    font-weight: 600;
    color: var(--color-slate-900);
    margin-bottom: 0.5rem;
}

body.dark .subsection-title {
    color: var(--color-white);
}

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

.tag {
    background-color: var(--color-cyan-100);
    color: var(--color-cyan-800);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
}

body.dark .tag {
    background-color: var(--color-cyan-900);
    color: var(--color-cyan-200);
}

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

.stat-card {
    text-align: center;
    padding: 1rem;
    background-color: var(--color-slate-100);
    border-radius: 0.5rem;
}

body.dark .stat-card {
    background-color: var(--color-slate-800);
}

.stat-number {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--color-cyan-500);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    margin-top: 0.5rem;
}

body.dark .stat-label {
    color: var(--color-slate-400);
}

/* Tech Stack */
.tech-stack {
    margin-top: 4rem;
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.tech-item {
    text-align: center;
}

.tech-icon-box {
    width: 4rem;
    height: 4rem;
    background-color: var(--color-slate-100);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.875rem;
}

body.dark .tech-icon-box {
    background-color: var(--color-slate-800);
}

.tech-label {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    margin-top: 0.5rem;
}

body.dark .tech-label {
    color: var(--color-slate-400);
}

/* Education Section */
.education-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.education-card {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

body.dark .education-card {
    background-color: var(--color-slate-900);
}

.education-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-slate-900);
}

body.dark .education-title {
    color: var(--color-white);
}

.education-school {
    color: var(--color-cyan-600);
    font-weight: 600;
}

body.dark .education-school {
    color: var(--color-cyan-400);
}

.education-date {
    color: var(--color-slate-600);
    margin-top: 0.25rem;
}

body.dark .education-date {
    color: var(--color-slate-400);
}

/* Experience Section */
.experience-list {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.experience-item {
    border-left: 4px solid var(--color-cyan-500);
    padding-left: 1.5rem;
}

.experience-company {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-slate-900);
}

body.dark .experience-company {
    color: var(--color-white);
}

.experience-location {
    color: var(--color-slate-600);
    margin-bottom: 1rem;
}

body.dark .experience-location {
    color: var(--color-slate-400);
}

.experience-roles {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.role-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-cyan-600);
}

body.dark .role-title {
    color: var(--color-cyan-400);
}

.role-date {
    color: var(--color-slate-600);
}

body.dark .role-date {
    color: var(--color-slate-400);
}

/* Projects Section */
.projects-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.project-card {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

body.dark .project-card {
    background-color: var(--color-slate-900);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: 0.75rem;
}

body.dark .project-title {
    color: var(--color-white);
}

.project-description {
    color: var(--color-slate-600);
    margin-bottom: 1rem;
}

body.dark .project-description {
    color: var(--color-slate-400);
}

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

.project-tag {
    background-color: var(--color-cyan-100);
    color: var(--color-cyan-800);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
}

body.dark .project-tag {
    background-color: var(--color-cyan-900);
    color: var(--color-cyan-200);
}

/* Certifications Section */
.cert-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.cert-card {
    background-color: var(--color-slate-50);
    padding: 1.5rem;
    border-radius: 0.5rem;
}

body.dark .cert-card {
    background-color: var(--color-slate-800);
}

.cert-icon {
    color: var(--color-cyan-500);
    font-size: 1.875rem;
    margin-bottom: 0.75rem;
}

.cert-title {
    font-weight: 600;
    color: var(--color-slate-900);
}

body.dark .cert-title {
    color: var(--color-white);
}

.cert-progress {
    font-size: 0.875rem;
    color: var(--color-slate-600);
    margin-top: 0.25rem;
}

body.dark .cert-progress {
    color: var(--color-slate-400);
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
    padding: 5rem 0;
}

.section-title-white {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 3rem;
    text-align: center;
}

.contact-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    padding: 1.5rem;
    border-radius: 0.5rem;
    display: flex;
    gap: 1rem;
}

.contact-icon {
    color: var(--color-cyan-400);
    font-size: 1.5rem;
}

.contact-label {
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 0.25rem;
}

.contact-link {
    color: var(--color-slate-300);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--color-cyan-400);
}

.contact-text {
    color: var(--color-slate-300);
}

/* Footer */
.footer {
    background-color: var(--color-slate-900);
    padding: 2rem 0;
}

body.dark .footer {
    background-color: var(--color-black);
}

.footer-content {
    text-align: center;
    color: var(--color-slate-400);
}

.footer-tagline {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}