/* ==========================================================================
   CSS DESIGN SYSTEM - PROMY DE VALEUR IDZALA PORTFOLIO (MULTI-PAGE)
   ========================================================================== */

/* 1. Global Reset & Theme Variables */
:root {
    /* Color Palette - Brightened Blue-Slate */
    --background: #131b2e;       /* Clearer deep blue-slate */
    --background-accent: #192239;/* Slightly lighter blue-slate accent */
    --card-bg: #1e2942;          /* Slate-800 equivalent but bluer */
    --card-bg-glass: rgba(30, 41, 66, 0.55);
    
    --primary: #6366f1;       /* Indigo */
    --primary-light: #818cf8;
    --primary-glow: rgba(99, 102, 241, 0.15);
    
    --accent: #10b981;        /* Emerald/Teal */
    --accent-light: #34d399;
    --accent-glow: rgba(16, 185, 129, 0.15);

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(99, 102, 241, 0.4);

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #10b981 100%);
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(16, 185, 129, 0.2) 100%);
    --gradient-overlay: linear-gradient(to bottom, rgba(19, 27, 46, 0.75), rgba(25, 34, 57, 0.95));

    /* Font Hierarchy */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Layout & Shadows */
    --max-width: 1200px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    background-color: var(--background);
    background-image: var(--gradient-overlay), radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 45%), radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 45%);
    background-attachment: fixed;
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 2. Helper Components */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

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

ul {
    list-style: none;
}

.icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
    display: inline-block;
    vertical-align: middle;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-lg {
    width: 28px;
    height: 28px;
}

/* Text Gradient Utilities */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Badges */
.badge {
    background: var(--primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: var(--primary-light);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-bottom: 1.5rem;
}

/* Custom Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-normal);
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5), 0 0 12px rgba(16, 185, 129, 0.2);
}

.btn-secondary {
    background: var(--card-bg-glass);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

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

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

/* Section Templates */
section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 4rem auto;
}

.section-subtitle {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.section-description {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* Page Header for Inner Pages */
.page-header {
    padding: 10rem 0 4rem 0;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.05) 0%, transparent 80%);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 4rem;
}

.page-header h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    letter-spacing: -1px;
}

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

/* ==========================================================================
   3. Header & Navigation Menu
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(19, 27, 46, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 0;
    transition: var(--transition-normal);
}

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

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 1px;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.btn-nav {
    background: var(--primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--primary-light);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.btn-nav:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-nav::after {
    display: none;
}

/* Language Switcher Styling */
.lang-switch {
    display: flex;
    gap: 0.35rem;
    align-items: center;
    border-left: 1px solid var(--border-color);
    padding-left: 1.5rem;
    margin-left: 0.25rem;
}

.lang-link {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.lang-link:hover, .lang-link.active {
    color: var(--text-main);
    background: var(--primary-glow);
}

@media (max-width: 768px) {
    .lang-switch {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding-left: 0;
        padding-top: 1.5rem;
        margin-left: 0;
        margin-top: 1rem;
        justify-content: center;
        gap: 1rem;
    }
    
    .lang-link {
        font-size: 1rem;
        padding: 0.5rem 1rem;
    }
}

/* Mobile Menu Toggle button */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* ==========================================================================
   4. Hero Section
   ========================================================================== */
.hero-section {
    padding: 11rem 0 7rem 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-bg-accent {
    position: absolute;
    top: -10%;
    right: 5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 680px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
}

.hero-description {
    color: var(--text-muted);
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.hero-cta-group {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 3.5rem;
}

/* Quick Contacts list under Hero */
.hero-contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.contact-link svg {
    color: var(--primary-light);
}

.contact-link:hover {
    color: var(--text-main);
    transform: translateY(-1px);
}

/* Hero Visual Container */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Hero Profile Picture overlap */
.profile-image-container {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 4px solid var(--background);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(99, 102, 241, 0.25);
    overflow: hidden;
    position: absolute;
    top: -50px;
    left: -30px;
    z-index: 10;
    transition: var(--transition-normal);
}

.profile-image-container:hover {
    transform: scale(1.05) rotate(-2deg);
    border-color: var(--accent);
    box-shadow: var(--shadow-lg), 0 0 25px rgba(16, 185, 129, 0.3);
}

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

/* About Profile Picture integration */
.about-profile-header {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    margin-bottom: 2rem;
}

.about-image-wrapper {
    flex-shrink: 0;
    width: 180px;
    height: 180px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 3px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.about-image-wrapper:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

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

/* Services Subsection Headings */
.services-subsection-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 4rem 0 2rem 0;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.services-subsection-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
}

.visual-card .card-header {
    background: rgba(15, 23, 42, 0.4);
    padding: 0.8rem 1.2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.visual-card .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.visual-card .red { background-color: #ef4444; }
.visual-card .yellow { background-color: #f59e0b; }
.visual-card .green { background-color: #10b981; }

.visual-card .file-name {
    margin-left: 0.75rem;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.visual-card .card-content {
    padding: 1.5rem;
}

.visual-card pre {
    font-family: 'Consolas', 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    overflow-x: auto;
}

.code-key { color: var(--accent-light); }
.code-val { color: #facc15; }

/* Floating badges in visual */
.floating-badge {
    position: absolute;
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.6rem 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    box-shadow: var(--shadow-md);
    font-size: 0.85rem;
    font-weight: 600;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: float 4s ease-in-out infinite;
}

.floating-badge svg {
    color: var(--accent);
}

.badge-top {
    top: -15px;
    right: -15px;
    animation-delay: 0s;
}

.badge-bottom {
    bottom: -15px;
    left: -15px;
    animation-delay: 2s;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

/* ==========================================================================
   5. Services Page & Cards
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.service-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: var(--shadow-lg), 0 0 15px rgba(99, 102, 241, 0.05);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon-wrapper {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-md);
    background: var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary-light);
}

.service-card:hover .service-icon-wrapper {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.service-icon {
    width: 26px;
    height: 26px;
    fill: currentColor;
}

.service-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.25px;
}

.service-card-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

/* Client project labels inside service card */
.client-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.client-tag {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.service-card:hover .client-tag {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.12);
}

/* ==========================================================================
   6. Tools Page
   ========================================================================== */
.tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.tool-category-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
}

.tool-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.25rem;
}

.tool-category-header svg {
    color: var(--accent);
}

.tool-category-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.25px;
}

.tool-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tool-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.tool-name {
    font-weight: 600;
}

.tool-status {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.tool-bar-bg {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.tool-bar-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
}

/* ==========================================================================
   7. About Page & Layouts
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 5rem;
}

.profile-details-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.profile-details-card h3, .languages-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
    color: var(--text-main);
}

.profile-details-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.profile-details-card p:last-child {
    margin-bottom: 0;
}

.languages-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}

.language-progress-grid {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.lang-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lang-header {
    display: flex;
    flex-direction: column;
}

.lang-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.lang-level {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
}

.lang-dots {
    display: flex;
    gap: 0.4rem;
}

.lang-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.lang-dots .dot.active {
    background: var(--gradient-primary);
}

/* Timeline Layout for Education and Experience */
.timeline-block {
    margin-bottom: 3rem;
}

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

.timeline-group-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 2rem;
    padding-left: 0.5rem;
}

.timeline {
    border-left: 2px solid rgba(255, 255, 255, 0.08);
    position: relative;
    padding-left: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.timeline-item {
    position: relative;
}

.timeline-marker {
    position: absolute;
    top: 6px;
    left: calc(-1.75rem - 6px);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--background);
    box-shadow: 0 0 8px var(--accent);
    transition: var(--transition-normal);
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary);
    transform: scale(1.3);
}

.timeline-content {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.timeline-content:hover {
    border-color: rgba(99, 102, 241, 0.2);
    transform: translateX(4px);
}

.timeline-date {
    display: inline-block;
    background: var(--primary-glow);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: var(--primary-light);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.timeline-institution {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.timeline-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.5;
}

/* Volunteer engagement block */
.volunteer-section {
    border-top: 1px solid var(--border-color);
    padding-top: 4rem;
    margin-bottom: 2rem;
}

.volunteer-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

.volunteer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
}

.volunteer-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-normal);
}

.volunteer-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.volunteer-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.volunteer-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.volunteer-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ==========================================================================
   8. Releases Page (Under Construction)
   ========================================================================== */
.construction-container {
    max-width: 600px;
    margin: 4rem auto;
    padding: 3rem;
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.construction-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 0.8; }
}

.construction-container h2 {
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.construction-container p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* ==========================================================================
   9. Contact Page & Forms
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 2rem;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.2);
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
}

.contact-card:hover .contact-card-icon {
    background: var(--gradient-primary);
    color: #fff;
}

.contact-card-details h4 {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-card-details p {
    font-size: 1.1rem;
    font-weight: 700;
}

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

/* Form Styling */
.contact-form-wrapper {
    background: var(--card-bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.2rem;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-main);
    transition: var(--transition-normal);
}

.form-group input::placeholder, .form-group textarea::placeholder {
    color: rgba(148, 163, 184, 0.4);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
    background: rgba(15, 23, 42, 0.8);
}

/* ==========================================================================
   10. Footer (Multi-Page Columns)
   ========================================================================== */
.footer {
    background: #090e1a;
    padding: 5rem 0 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.footer-col {
    text-align: left;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--gradient-primary);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.footer-col li {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
}

/* ==========================================================================
   11. Responsive Media Queries
   ========================================================================== */

/* Tablet (1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .hero-cta-group {
        justify-content: center;
    }

    .hero-contact-links {
        justify-content: center;
    }

    .hero-visual {
        margin-top: 1rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

/* Small Tablets / Large Phones (768px) */
@media (max-width: 768px) {
    section {
        padding: 4.5rem 0;
    }

    .section-title {
        font-size: 1.85rem;
    }
    
    /* Navigation layout changes to hamburger drawer */
    .mobile-nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: #131b2e;
        flex-direction: column;
        padding: 3rem 1.5rem;
        gap: 2rem;
        transition: var(--transition-normal);
        border-top: 1px solid var(--border-color);
        align-items: stretch;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        text-align: center;
        padding: 0.75rem 0;
        width: 100%;
    }

    .btn-nav {
        text-align: center;
        margin-top: 1rem;
    }

    .mobile-nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .mobile-nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile Phones (480px) */
@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2.15rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-description {
        font-size: 1.05rem;
    }

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

    .btn {
        width: 100%;
    }

    .hero-contact-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

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

    .service-card {
        padding: 1.75rem;
    }

    .tool-category-card {
        padding: 1.75rem;
    }

    .profile-details-card, .languages-card {
        padding: 1.75rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}