/* ==========================================================================
   Prasanna Satgunarajah - Personal Website
   Modern Theme: Teal & Slate with Gradient Accents
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Variables)
   -------------------------------------------------------------------------- */
:root {
    /* Primary Colors - Modern Teal/Cyan */
    --color-primary: #0891B2;
    --color-primary-dark: #0E7490;
    --color-primary-light: #22D3EE;
    --color-primary-rgb: 8, 145, 178;

    /* Secondary Colors - Deep Slate */
    --color-secondary: #1E293B;
    --color-secondary-dark: #0F172A;
    --color-secondary-light: #334155;

    /* Accent Colors - Vibrant gradients */
    --color-accent: #06B6D4;
    --color-accent-warm: #F59E0B;
    --color-accent-purple: #8B5CF6;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-off-white: #F8FAFC;
    --color-light-gray: #F1F5F9;
    --color-gray: #E2E8F0;
    --color-medium-gray: #94A3B8;
    --color-dark-gray: #475569;
    --color-black: #0F172A;

    /* Text Colors */
    --color-text: #1E293B;
    --color-text-light: #64748B;
    --color-text-muted: #94A3B8;

    /* Functional Colors */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0891B2 0%, #0E7490 50%, #164E63 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #334155 100%);
    --gradient-hero: linear-gradient(135deg, #F8FAFC 0%, #E0F2FE 50%, #F0F9FF 100%);
    --gradient-accent: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(8, 145, 178, 0.05) 0%, rgba(6, 182, 212, 0.1) 100%);

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Container */
    --container-max: 1200px;
    --container-narrow: 800px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(15, 23, 42, 0.2);
    --shadow-glow: 0 0 40px rgba(8, 145, 178, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(8, 145, 178, 0.25);

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 50%;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

ul, ol {
    list-style: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

p:last-child {
    margin-bottom: 0;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-light);
    font-weight: 400;
}

blockquote {
    position: relative;
    padding: var(--space-xl) var(--space-2xl);
    margin: var(--space-2xl) 0;
    background: var(--gradient-subtle);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    font-style: italic;
    font-size: 1.125rem;
}

blockquote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 5rem;
    font-family: var(--font-heading);
    color: var(--color-primary);
    opacity: 0.15;
    line-height: 1;
}

blockquote cite {
    display: block;
    margin-top: var(--space-md);
    font-style: normal;
    font-weight: 600;
    color: var(--color-black);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.site-main {
    min-height: 100vh;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    line-height: 1.2;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.logo-icon svg {
    display: block;
}

.logo:hover .logo-icon {
    color: var(--color-primary-dark);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-first {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.logo-last {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
}

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

.nav-menu a {
    position: relative;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
    background: rgba(8, 145, 178, 0.08);
}

.nav-cta {
    background: var(--color-primary) !important;
    color: var(--color-white) !important;
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    transition: all var(--transition-base) !important;
}

.nav-cta:hover {
    background: var(--color-primary-dark) !important;
    transform: translateY(-2px) !important;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--color-light-gray);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    transition: background var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--color-gray);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 20px;
    height: 2px;
    background: var(--color-black);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all var(--transition-base);
    border-radius: 2px;
}

.hamburger {
    top: 50%;
    transform: translate(-50%, -50%);
}

.hamburger::before,
.hamburger::after {
    content: '';
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

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

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

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

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

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

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

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
section {
    padding: var(--space-4xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    margin-bottom: var(--space-md);
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    margin: var(--space-lg) auto;
    border-radius: var(--radius-full);
}

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

.section-dark {
    background: var(--gradient-dark);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.section-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--color-white);
}

.section-dark p {
    color: var(--color-gray);
}

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

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    padding-top: calc(80px + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 50%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(8, 145, 178, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 40%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 650px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(8, 145, 178, 0.1);
    border: 1px solid rgba(8, 145, 178, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.hero-badge svg {
    width: 18px;
    height: 18px;
}

.hero-subtitle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.hero-title {
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.hero-title span {
    color: var(--color-primary);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-gray);
}

.hero-stat {
    text-align: left;
}

.hero-stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    font-family: var(--font-heading);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

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

.hero-visual-wrapper {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.hero-visual-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
    position: relative;
    z-index: 2;
}

.hero-visual-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--color-primary);
    border-radius: calc(var(--radius-2xl) + 2px);
    z-index: -1;
    opacity: 0.3;
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-gray);
}

.hero-card-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.hero-card-icon svg {
    width: 28px;
    height: 28px;
}

.hero-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--space-xs);
}

.hero-card-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.hero-card-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.hero-card-feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-light-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.hero-card-feature:hover {
    background: rgba(8, 145, 178, 0.08);
    transform: translateX(5px);
}

.hero-card-feature-icon {
    width: 40px;
    height: 40px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.hero-card-feature-icon svg {
    width: 20px;
    height: 20px;
}

.hero-card-feature-text {
    font-weight: 500;
    color: var(--color-text);
}

/* Floating elements - static badges */
.hero-floating {
    position: absolute;
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 0.85rem;
    z-index: 3;
}

.hero-floating-1 {
    top: 10%;
    right: -20px;
}

.hero-floating-2 {
    bottom: 20%;
    left: -30px;
}

.hero-floating svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    background: var(--color-primary);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.6;
}

.about-text h2 {
    margin-bottom: var(--space-lg);
    text-align: center;
}

.about-text .lead {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    text-align: center;
    max-width: 700px;
    margin: var(--space-xl) auto 0;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.highlight-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-subtle);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.highlight-text h4 {
    margin-bottom: var(--space-xs);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
}

.highlight-text p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.card:hover {
    background: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card:hover h3,
.card:hover p {
    color: var(--color-white);
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 145, 178, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    transition: all var(--transition-base);
}

.card:hover .card-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.card-icon svg {
    width: 28px;
    height: 28px;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

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

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.service-card:hover {
    background: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-card:hover h3,
.service-card:hover p {
    color: var(--color-white);
}

.service-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    color: var(--color-white);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: rgba(255, 255, 255, 0.2);
}

.service-icon svg {
    width: 36px;
    height: 36px;
}

.service-card h3 {
    margin-bottom: var(--space-md);
}

.service-card p {
    color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Experience / Timeline
   -------------------------------------------------------------------------- */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: var(--space-xl);
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: var(--space-3xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--space-3xl);
}

.timeline-marker {
    position: absolute;
    top: var(--space-xl);
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border: 4px solid var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -12px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -12px;
}

.timeline-content {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-subtle);
    border-radius: var(--radius-full);
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Competencies
   -------------------------------------------------------------------------- */
.competencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.competency-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.competency-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-primary);
}

.competency-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-xl);
}

.competency-card h3 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.competency-card h3 svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.competency-card p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.competency-card ul {
    list-style: none;
}

.competency-card li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.competency-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Quote Section
   -------------------------------------------------------------------------- */
.quote-section {
    background: var(--gradient-primary);
    color: var(--color-white);
    text-align: center;
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.quote-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
}

.quote-section blockquote {
    background: transparent;
    border: none;
    padding: 0;
    font-size: 1.75rem;
    font-style: italic;
    color: var(--color-white);
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.quote-section blockquote::before {
    color: var(--color-white);
    opacity: 0.2;
}

.quote-section cite {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
}

.contact-info h2 {
    margin-bottom: var(--space-lg);
}

.contact-info > p {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.contact-details {
    margin-top: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-light-gray);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.contact-item:hover {
    background: var(--gradient-subtle);
    transform: translateX(5px);
}

.contact-item-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.contact-item-text h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.contact-item-text p,
.contact-item-text a {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.contact-form {
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(226, 232, 240, 0.5);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--color-gray);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    background: var(--color-off-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.1);
    background: var(--color-white);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-message {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    display: none;
    font-weight: 500;
}

.form-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
    display: block;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: block;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background: var(--gradient-dark);
    color: var(--color-white);
    padding: var(--space-4xl) 0 var(--space-xl);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.footer-logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.footer-logo-icon svg {
    display: block;
}

.footer-logo-text {
    display: flex;
    flex-direction: column;
}

.footer-brand .footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 0;
}

.footer-logo-text .footer-tagline {
    color: var(--color-primary-light);
    font-weight: 600;
    margin-bottom: 0;
}

.footer-description {
    color: var(--color-medium-gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-nav h4,
.footer-contact h4,
.footer-cta h4 {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.footer-nav ul li {
    margin-bottom: var(--space-sm);
}

.footer-nav ul a {
    color: var(--color-medium-gray);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.footer-nav ul a:hover {
    color: var(--color-white);
    transform: translateX(5px);
}

.footer-contact ul li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--color-medium-gray);
    font-size: 0.95rem;
}

.footer-contact ul li svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.footer-contact ul li a {
    color: var(--color-medium-gray);
}

.footer-contact ul li a:hover {
    color: var(--color-white);
}

.footer-cta p {
    color: var(--color-medium-gray);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

.footer-cta .btn-outline {
    border-color: var(--color-primary);
    color: var(--color-white);
}

.footer-cta .btn-outline:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-medium-gray);
    font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   Back to top button
   -------------------------------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   Page Headers
   -------------------------------------------------------------------------- */
.page-header {
    padding-top: calc(80px + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    background: var(--gradient-hero);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: radial-gradient(ellipse at right, rgba(8, 145, 178, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-header h1 {
    margin-bottom: var(--space-md);
    position: relative;
}

.page-header p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--color-text-light);
    font-size: 1.125rem;
    position: relative;
}

.breadcrumbs {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    position: relative;
}

.breadcrumbs a {
    color: var(--color-primary);
    font-weight: 500;
}

.breadcrumbs span {
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   CV Download Section
   -------------------------------------------------------------------------- */
.cv-download {
    text-align: center;
    padding: var(--space-3xl) 0;
    background: var(--color-light-gray);
}

.cv-download h2 {
    margin-bottom: var(--space-md);
}

.cv-download p {
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .hero-visual-wrapper {
        max-width: 400px;
    }

    .hero-floating {
        display: none;
    }

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

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

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

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

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 60px !important;
        padding-right: var(--space-md) !important;
        text-align: left !important;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-marker {
        left: 8px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    :root {
        --space-4xl: 4rem;
    }

    .hero {
        min-height: auto;
        padding-top: calc(80px + var(--space-2xl));
        padding-bottom: var(--space-2xl);
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-xl);
        gap: 0;
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--color-gray);
    }

    .nav-menu a {
        display: block;
        padding: var(--space-md) 0;
        border-radius: 0;
    }

    .nav-cta {
        margin-top: var(--space-md);
        text-align: center;
        border-radius: var(--radius-lg) !important;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-logo-wrapper {
        justify-content: center;
    }

    .footer-contact ul li {
        justify-content: center;
    }

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

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

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

    blockquote {
        padding: var(--space-lg);
        font-size: 1rem;
    }

    .quote-section blockquote {
        font-size: 1.25rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
        align-items: center;
    }

    .hero-stat {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-icon svg {
        width: 32px;
        height: 32px;
    }

    .logo-first {
        font-size: 1.25rem;
    }

    .logo-last {
        font-size: 0.8rem;
    }

    .footer-logo-icon svg {
        width: 40px;
        height: 40px;
    }

    .hero-visual-wrapper {
        max-width: 300px;
    }

    .btn {
        width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

    .hero-visual-card {
        padding: var(--space-lg);
    }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

/* Utility class for elements that should animate when visible */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.text-primary {
    color: var(--color-primary);
}

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

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
    .site-header,
    .site-footer,
    .back-to-top,
    .mobile-menu-toggle {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    .hero {
        min-height: auto;
        padding: 20pt 0;
    }

    section {
        padding: 20pt 0;
        page-break-inside: avoid;
    }
}