/* ============================================
   CUSTOM CSS VARIABLES
   Reusable design tokens for consistent styling
   ============================================ */

:root {
    /* Color Palette - Professional Blue Theme */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #64748b;
    --color-secondary-dark: #475569;
    --color-accent: #0ea5e9;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-base: 1.6;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Container Max Width */
    --container-max-width: 1200px;
}

/* ============================================
   GLOBAL STYLES
   Base styles and resets
   ============================================ */

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

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

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--color-gray-700);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    25% {
        background-position: 50% 25%;
    }
    50% {
        background-position: 100% 50%;
    }
    75% {
        background-position: 50% 75%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ============================================
   TYPOGRAPHY
   Headings, paragraphs, and text utilities
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
}

.lead {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-normal);
    color: var(--color-gray-600);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

/* ============================================
   SECTION UTILITIES
   Common section styles and spacing
   ============================================ */

.section-padding {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
}

@media (max-width: 768px) {
    .section-padding {
        padding-top: var(--spacing-3xl);
        padding-bottom: var(--spacing-3xl);
    }
}

.section-header {
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: var(--gradient-secondary);
    margin: 0 auto;
    border-radius: var(--border-radius-full);
}

.section-divider-light {
    background: var(--color-white);
}

/* ============================================
   HERO SECTION
   Full-width hero with name, title, and CTAs
   ============================================ */

.hero-section {
    position: relative;
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-white);
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, rgba(59, 130, 246, 0) 70%);
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(-30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-60px, 0) scale(1);
    }
    75% {
        transform: translate(-30px, 30px) scale(1.05);
    }
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

/* Profile Photo Styles */
.profile-photo-container {
    display: inline-block;
    position: relative;
    animation: fadeInScale 0.8s ease-out;
}

.profile-photo {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--color-white);
    box-shadow: 0 15px 50px rgba(37, 99, 235, 0.25),
                0 0 0 1px rgba(37, 99, 235, 0.1),
                inset 0 -2px 8px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.profile-photo:hover {
    transform: scale(1.08) translateY(-5px);
    box-shadow: 0 25px 60px rgba(37, 99, 235, 0.35),
                0 0 0 2px rgba(59, 130, 246, 0.5),
                inset 0 -2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .profile-photo {
        width: 150px;
        height: 150px;
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-name {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .hero-name {
        font-size: 2.5rem;
    }
}

.hero-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 1.5rem;
    }
}

.hero-summary {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

/* Experience Badges */
.experience-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.badge-item {
    display: inline-block;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    color: var(--color-gray-700);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ============================================
   VALUE CREATION SECTION
   ============================================ */
.value-card {
    background: var(--color-white);
    border: 1px solid #e5e7eb;
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.value-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.value-icon {
    width: 60px;
    height: 60px;
    background: #eff6ff;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.value-icon i {
    font-size: 1.75rem;
    color: var(--color-primary);
}

.value-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.value-list {
    list-style: none;
    padding: 0;
    text-align: left;
}

.value-list li {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   BUTTONS
   Custom button styles and hover effects
   ============================================ */

.btn {
    font-weight: var(--font-weight-semibold);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-secondary {
    background-color: transparent;
    border-color: var(--color-gray-300);
    color: var(--color-gray-700);
}

.btn-outline-secondary:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
    color: var(--color-gray-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   ABOUT SECTION
   Professional biography section
   ============================================ */

.section-padding {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
}

#about {
    background: #f9fafb;
}

#experience {
    background: var(--color-white);
}

#education {
    background: #f9fafb;
}

#contact {
    background: var(--color-white);
}

.about-content {
    font-size: var(--font-size-base);
    color: var(--color-gray-700);
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* ============================================
   COMPETENCIES SECTION
   Skills cards layout
   ============================================ */

.competency-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.05);
    transition: all var(--transition-base);
}

.competency-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 16px 48px rgba(37, 99, 235, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
}

.competency-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.competency-icon i {
    font-size: 1.75rem;
    color: var(--color-white);
}

.competency-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-lg);
}

.competency-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.competency-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-600);
}

.competency-list li:before {
    content: "\F26A";
    font-family: "bootstrap-icons";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.competency-list li:last-child {
    margin-bottom: 0;
}

/* ============================================
   EXPERIENCE SECTION
   Timeline layout for work experience
   ============================================ */

.timeline {
    position: relative;
    padding-left: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-3xl);
}

@media (max-width: 768px) {
    .timeline-item {
        padding-left: 60px;
    }
}

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

.timeline-marker {
    position: absolute;
    left: 20px;
    top: 8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--gradient-secondary);
    border: 4px solid var(--color-white);
    box-shadow: 0 0 0 4px var(--color-gray-200);
    z-index: 1;
}

@media (max-width: 768px) {
    .timeline-marker {
        left: 10px;
        width: 18px;
        height: 18px;
    }
}

.timeline-content {
    flex: 1;
}

.experience-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.05);
    transition: all var(--transition-base);
}

.experience-card:hover {
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 16px 48px rgba(37, 99, 235, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-5px);
}

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

.experience-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.experience-company {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: 0;
}

.experience-period {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-500);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius-full);
    white-space: nowrap;
}

.experience-description {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.experience-achievements {
    margin-top: var(--spacing-xl);
}

.achievements-title {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
}

.achievements-title i {
    color: var(--color-accent);
}

.achievements-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.achievements-list li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.achievements-list li:before {
    content: "\F272";
    font-family: "bootstrap-icons";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-size: 0.875rem;
}

.achievements-list li:last-child {
    margin-bottom: 0;
}

/* ============================================
   ACHIEVEMENTS SECTION
   Statistics cards with gradient background
   ============================================ */

.bg-gradient-dark {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%) !important;
    position: relative;
    overflow: hidden;
}

.bg-gradient-dark::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0) 70%);
    pointer-events: none;
    animation: pulse-glow 8s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

.stat-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 16px 48px rgba(59, 130, 246, 0.2);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.stat-icon i {
    font-size: 1.75rem;
    color: var(--color-white);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   EDUCATION SECTION
   Education and certification cards
   ============================================ */

.education-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.05);
    transition: all var(--transition-base);
    text-align: center;
}

.education-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 16px 48px rgba(37, 99, 235, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
}

.education-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.education-icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.education-degree {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.education-institution {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.education-period {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
}

.education-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ============================================
   LANGUAGES SECTION
   Language proficiency with badges
   ============================================ */

.languages-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.language-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: #f3f4f6;
    border: 1px solid #d1d5db;
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-base);
}

.language-badge:hover {
    background: #e5e7eb;
    border-color: var(--color-primary);
}

.language-badge-name {
    font-weight: 600;
    color: var(--color-gray-900);
    font-size: 0.9375rem;
}

.language-badge-level {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
}


/* ============================================
   CONTACT SECTION
   Contact information and CTA
   ============================================ */

.contact-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: 0 12px 48px rgba(37, 99, 235, 0.08);
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: var(--border-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

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

.contact-title {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.contact-link {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    word-break: break-word;
}

.contact-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.contact-text {
    color: var(--color-gray-700);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.contact-subtext {
    font-size: var(--font-size-sm);
}

.contact-cta {
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-gray-200);
}

.contact-cta p {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   FOOTER
   Site footer with social links
   ============================================ */

.footer {
    background-color: var(--color-gray-900);
    padding: var(--spacing-2xl) 0;
    color: var(--color-gray-400);
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-social {
        justify-content: flex-end;
    }
}

.footer-social-link {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    color: var(--color-gray-400);
    transition: all var(--transition-base);
}

.footer-social-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

.footer-social-link i {
    font-size: 1.125rem;
}

/* ============================================
   UTILITY CLASSES
   Helper classes for common styles
   ============================================ */

.bg-light {
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.6) 0%, rgba(240, 244, 255, 0.4) 100%) !important;
    backdrop-filter: blur(5px);
}

.text-white-50 {
    color: rgba(255, 255, 255, 0.5) !important;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   Mobile and tablet specific styles
   ============================================ */

@media (max-width: 768px) {
    .hero-section {
        min-height: auto;
        padding-top: var(--spacing-3xl);
        padding-bottom: var(--spacing-3xl);
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

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

    .experience-period {
        align-self: flex-start;
    }

    .contact-card {
        padding: var(--spacing-xl);
    }
}

/* ============================================
   ANIMATIONS
   Subtle animations for better UX
   ============================================ */

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

/* Apply fade-in animation to sections on scroll */
.section-padding {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.section-padding:nth-child(1) {
    animation-delay: 0s;
}

.section-padding:nth-child(2) {
    animation-delay: 0.1s;
}

.section-padding:nth-child(3) {
    animation-delay: 0.2s;
}

/* Accessibility: Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ============================================
   PRINT STYLES
   Optimize for printing
   ============================================ */

@media print {
    .hero-buttons,
    .contact-cta,
    .footer {
        display: none;
    }

    .section-padding {
        page-break-inside: avoid;
    }

    body {
        font-size: 12pt;
    }

    .hero-section {
        min-height: auto;
    }
}

/* ============================================
   LANGUAGE SWITCHER
   Floating button to switch between languages
   ============================================ */

.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background-color: var(--color-white);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-full);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-switcher:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.language-switcher:active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .language-switcher {
        top: 10px;
        right: 10px;
        padding: 0.5rem 1rem;
        font-size: var(--font-size-sm);
    }
}