/* =============================================
   TvorimeWeby.sk — Design System
   Premium dark-mode web agency website
   ============================================= */

/* ---------- RESET ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ---------- CSS VARIABLES ---------- */
:root {
    /* Backgrounds */
    --bg-primary: #06060f;
    --bg-secondary: #0d0d1a;
    --bg-tertiary: #111127;
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.06);

    /* Text */
    --text-white: #f1f5f9;
    --text-light: #e2e8f0;
    --text-dim: #94a3b8;
    --text-muted: #64748b;

    /* Accent — Indigo / Violet */
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-dark: #4f46e5;
    --accent-2: #8b5cf6;
    --accent-2-light: #a78bfa;
    --gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --gradient-hover: linear-gradient(135deg, #4f46e5, #7c3aed);
    --gradient-text: linear-gradient(135deg, #818cf8, #a78bfa);
    --gradient-subtle: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(139,92,246,0.12));

    /* Status */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Borders */
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --border-accent: rgba(99,102,241,0.3);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 48px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(99,102,241,0.15);

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 0.3s;

    /* Layout */
    --container: 1200px;
    --nav-height: 72px;
}

/* ---------- FONT FALLBACK (CLS prevention) ---------- */
@font-face {
    font-family: 'Inter Fallback';
    src: local('Arial');
    size-adjust: 107%;
    ascent-override: 90%;
    descent-override: 25%;
    line-gap-override: 0%;
}

/* ---------- BASE ---------- */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', 'Inter Fallback', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-light);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-light); text-decoration: none; transition: color var(--duration) var(--ease); }
a:hover { color: var(--accent-2-light); }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding { padding: 100px 0; }

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

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header p {
    color: var(--text-dim);
    font-size: 1.05rem;
    margin-top: 16px;
}

.section-badge {
    display: inline-block;
    padding: 6px 18px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    padding: 14px 32px;
    box-shadow: 0 4px 20px rgba(99,102,241,0.3);
}
.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(99,102,241,0.4);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--text-white);
    padding: 14px 32px;
    border: 1px solid var(--border-hover);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent-light);
    background: rgba(99,102,241,0.06);
}

.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }

/* ---------- GLASS CARD ---------- */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--duration) var(--ease);
}

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

/* ---------- NAVIGATION ---------- */
nav#mainNav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(6,6,15,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--duration) var(--ease);
}

nav#mainNav.scrolled {
    background: rgba(6,6,15,0.95);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
}

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -0.03em;
}
.logo:hover { color: var(--text-white); }
.logo .accent { color: var(--accent-light); }

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    color: var(--text-dim);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--duration) var(--ease);
}
.nav-links a:hover, .nav-links a.active {
    color: var(--text-white);
    background: rgba(255,255,255,0.05);
}

.nav-cta {
    background: var(--gradient) !important;
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
}
.nav-cta:hover {
    background: var(--gradient-hover) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99,102,241,0.3);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ---------- HERO ---------- */
.hero {
    padding: calc(var(--nav-height) + 60px) 0 80px;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 24px;
}

.hero h1 { margin-bottom: 20px; }

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 36px;
    max-width: 540px;
    line-height: 1.8;
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.hero-image {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    aspect-ratio: 1 / 1;
    max-width: 546px;
    margin-left: auto;
}

.hero-image img {
    width: 100%;
    max-width: 546px;
    aspect-ratio: 1 / 1;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ---------- SERVICES ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    padding: 36px 28px;
    text-align: center;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.service-card h3 { margin-bottom: 12px; }

.service-card p {
    color: var(--text-dim);
    font-size: 0.92rem;
    margin-bottom: 20px;
}

.service-list {
    list-style: none;
    text-align: left;
    margin-bottom: 20px;
}

.service-list li {
    padding: 6px 0;
    color: var(--text-dim);
    font-size: 0.88rem;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.check { color: var(--success); font-weight: 700; flex-shrink: 0; }

.service-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 4px;
}

.service-price-label {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.service-badge {
    display: inline-block;
    margin-top: 16px;
    padding: 6px 16px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-light);
}

/* ---------- PORTFOLIO PREVIEW ---------- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portfolio-card {
    padding: 0;
    overflow: hidden;
    cursor: pointer;
}

.portfolio-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transition: transform var(--duration) var(--ease);
}

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

.portfolio-card-body {
    padding: 24px;
}

.portfolio-card-body h3 { font-size: 1.1rem; margin-bottom: 8px; }

.portfolio-card-body p {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-bottom: 12px;
}

.portfolio-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.portfolio-tag {
    padding: 4px 12px;
    background: rgba(99,102,241,0.1);
    border: 1px solid rgba(99,102,241,0.2);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-light);
}

/* ---------- PROCESS ---------- */
.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.process-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--duration) var(--ease);
    position: relative;
}

.process-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.process-num {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    color: #fff;
    margin: 0 auto 20px;
}

.process-icon {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.process-card h3 { margin-bottom: 10px; font-size: 1.05rem; }

.process-card p {
    color: var(--text-dim);
    font-size: 0.88rem;
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 0;
    background: none;
    border: none;
    color: var(--text-white);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: color var(--duration) var(--ease);
}
.faq-question:hover { color: var(--accent-light); }

.faq-arrow {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform var(--duration) var(--ease);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease);
}

.faq-answer-inner {
    padding: 0 0 20px;
    color: var(--text-dim);
    font-size: 0.92rem;
    line-height: 1.8;
}

/* ---------- CTA SECTION ---------- */
.cta-section {
    padding: 80px 0;
    text-align: center;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(99,102,241,0.08) 0%, transparent 60%);
    pointer-events: none;
}

.cta-section h2 { margin-bottom: 16px; position: relative; z-index: 1; }
.cta-section p { color: var(--text-dim); margin-bottom: 32px; position: relative; z-index: 1; }
.cta-section .btn { position: relative; z-index: 1; }

/* ---------- CONTACT FORM ---------- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 { margin-bottom: 12px; }
.contact-info > p { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 28px; }

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
}

.contact-detail-icon { font-size: 1.3rem; flex-shrink: 0; }

.contact-detail-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.contact-detail-value {
    color: var(--text-white);
    font-size: 0.95rem;
}

.contact-form-card { padding: 32px; }

.form-group { margin-bottom: 20px; }

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 8px;
}

.required { color: var(--error); }

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-white);
    font-family: inherit;
    font-size: 0.92rem;
    transition: all var(--duration) var(--ease);
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--accent);
    background: rgba(99,102,241,0.06);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.form-textarea { min-height: 120px; resize: vertical; }
.form-select { cursor: pointer; }
.form-select option { background: var(--bg-secondary); color: var(--text-white); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.service-type-selector {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.service-type-option {
    flex: 1;
    padding: 14px 18px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-dim);
    transition: all var(--duration) var(--ease);
    min-width: 140px;
}

.service-type-option:hover { border-color: var(--border-hover); color: var(--text-white); }
.service-type-option.selected {
    border-color: var(--accent);
    background: rgba(99,102,241,0.1);
    color: var(--text-white);
}
.service-type-option input { display: none; }

.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--gradient);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
}
.btn-submit:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99,102,241,0.3);
}
.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.form-message {
    display: none;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-bottom: 20px;
}
.form-message.success {
    display: block;
    background: rgba(34,197,94,0.1);
    border: 1px solid rgba(34,197,94,0.3);
    color: var(--success);
}
.form-message.error {
    display: block;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    color: var(--error);
}

.form-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-top: 14px;
}

/* ---------- CHECKBOX (GDPR) ---------- */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    position: relative;
    padding-left: 0;
}

.form-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.form-checkbox .checkmark {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--border);
    border-radius: 5px;
    background: rgba(255,255,255,0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration) var(--ease);
    margin-top: 1px;
}

.form-checkbox input:checked + .checkmark {
    background: var(--gradient);
    border-color: var(--accent);
}

.form-checkbox input:checked + .checkmark::after {
    content: '✓';
    color: #fff;
    font-size: 0.72rem;
    font-weight: 800;
}

.form-checkbox input:focus + .checkmark {
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.checkbox-text {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.5;
}

.checkbox-text a {
    color: var(--accent-light);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.checkbox-text a:hover {
    color: var(--text-white);
}

/* ---------- PRICING ---------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: start;
}

.pricing-card {
    padding: 36px 28px;
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--accent);
    background: rgba(99,102,241,0.06);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    display: inline-block;
    padding: 5px 16px;
    background: var(--gradient);
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.pricing-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 8px;
}

.pricing-desc {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-bottom: 20px;
}

.pricing-price {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--text-white);
    line-height: 1;
    margin-bottom: 4px;
}

.pricing-price .currency { font-size: 1.4rem; vertical-align: super; }
.pricing-price .from { font-size: 0.9rem; font-weight: 500; color: var(--text-dim); }

.pricing-period {
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-bottom: 28px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 0.88rem;
    color: var(--text-dim);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.pricing-features .highlight-feature {
    color: var(--accent-light);
    font-weight: 600;
}

/* ---------- COURSE PAGE ---------- */
.course-hero {
    padding: calc(var(--nav-height) + 60px) 0 60px;
    background: var(--bg-primary);
}

.course-hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.course-hero-text h1 { margin-bottom: 16px; }
.course-hero-text p { color: var(--text-dim); margin-bottom: 24px; font-size: 1.05rem; }

.course-hero-meta {
    display: flex;
    gap: 24px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.course-hero-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.course-hero-meta-icon { font-size: 1.4rem; }
.course-hero-meta-item strong { color: var(--text-white); font-size: 0.82rem; }
.course-hero-meta-item span { color: var(--text-dim); font-size: 0.88rem; }

.course-hero-btn {
    display: inline-block;
    padding: 16px 36px;
    background: var(--gradient);
    color: #fff;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    transition: all var(--duration) var(--ease);
}
.course-hero-btn:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99,102,241,0.3);
    color: #fff;
}

.course-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.course-topic-card {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--duration) var(--ease);
}

.course-topic-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.course-topic-num {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #fff;
    font-size: 0.95rem;
}

.course-topic-body h3 { font-size: 1.05rem; margin-bottom: 12px; }

.course-topic-body ul {
    list-style: none;
    padding: 0;
}

.course-topic-body li {
    padding: 4px 0;
    color: var(--text-dim);
    font-size: 0.85rem;
    position: relative;
    padding-left: 16px;
}

.course-topic-body li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-light);
    font-size: 0.75rem;
}

/* ---------- BLOG ---------- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.blog-card {
    overflow: hidden;
    transition: all var(--duration) var(--ease);
}

.blog-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.blog-card-body {
    padding: 24px;
}

.blog-card-date {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.blog-card-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-card-body p {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.blog-card-link {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.blog-card-link:hover { gap: 10px; }

/* ---------- BLOG ARTICLE ---------- */
.article-hero {
    padding: calc(var(--nav-height) + 40px) 0 40px;
    background: var(--bg-primary);
}

.article-content {
    max-width: 780px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.article-content h2 {
    font-size: 1.4rem;
    margin: 40px 0 16px;
}

.article-content h3 {
    font-size: 1.15rem;
    margin: 32px 0 12px;
}

.article-content p {
    color: var(--text-dim);
    margin-bottom: 20px;
    line-height: 1.9;
}

.article-content ul, .article-content ol {
    color: var(--text-dim);
    margin: 0 0 20px 24px;
    line-height: 1.9;
}

.article-content li { margin-bottom: 6px; }

.article-content strong { color: var(--text-white); }

.article-content blockquote {
    margin: 24px 0;
    padding: 20px 24px;
    background: var(--gradient-subtle);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-light);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9rem;
}

.article-content th, .article-content td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
}

.article-content th {
    background: rgba(99,102,241,0.1);
    color: var(--text-white);
    font-weight: 600;
}

.article-content td { color: var(--text-dim); }

.article-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.article-cta {
    margin-top: 48px;
    padding: 32px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    text-align: center;
}

.article-cta h3 { margin-bottom: 12px; }
.article-cta p { color: var(--text-dim); margin-bottom: 20px; }

/* ---------- ABOUT ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p { color: var(--text-dim); margin-bottom: 16px; }

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.value-card {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--duration) var(--ease);
}

.value-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.value-card-icon { font-size: 1.6rem; margin-bottom: 12px; }
.value-card h4 { margin-bottom: 8px; font-size: 1rem; }
.value-card p { color: var(--text-dim); font-size: 0.85rem; }

.tech-badges {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.tech-badge {
    padding: 8px 18px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-dim);
    transition: all var(--duration) var(--ease);
}

.tech-badge:hover {
    border-color: var(--accent);
    color: var(--accent-light);
    background: rgba(99,102,241,0.06);
}

/* ---------- WHY US ---------- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.why-card {
    padding: 28px;
    display: flex;
    gap: 16px;
}

.why-card-icon { font-size: 1.8rem; flex-shrink: 0; }
.why-card-title { margin-bottom: 6px; font-size: 1.1rem; }
.why-card p { color: var(--text-dim); font-size: 0.88rem; }

/* ---------- PORTFOLIO CASE STUDY (Full page) ---------- */
.case-study {
    padding: 48px 0;
    border-bottom: 1px solid var(--border);
}

.case-study:last-child { border-bottom: none; }

.case-study-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.case-study-grid.reverse { direction: rtl; }
.case-study-grid.reverse > * { direction: ltr; }

.case-study-img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.case-study-body h3 { font-size: 1.5rem; margin-bottom: 12px; }
.case-study-body p { color: var(--text-dim); margin-bottom: 16px; }

.case-study-features {
    list-style: none;
    margin-bottom: 20px;
}

.case-study-features li {
    padding: 5px 0;
    color: var(--text-dim);
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ---------- FOOTER ---------- */
.main-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 16px; display: inline-block; }
.footer-brand p { color: var(--text-dim); font-size: 0.88rem; }

.footer-heading {
    color: var(--text-white);
    font-size: 0.92rem;
    margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-dim); font-size: 0.88rem; }
.footer-col a:hover { color: var(--accent-light); }

.footer-billing {
    margin-top: 20px;
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.copyright {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ---------- SCROLL TO TOP ---------- */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration) var(--ease);
    z-index: 999;
    box-shadow: 0 4px 16px rgba(99,102,241,0.3);
}
.scroll-top.visible { opacity: 1; visibility: visible; }
.scroll-top:hover { transform: translateY(-3px); }

/* ---------- ANIMATIONS ---------- */
.anim-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.anim-fade-up.visible { opacity: 1; transform: translateY(0); }
.anim-delay-1 { transition-delay: 0.1s; }
.anim-delay-2 { transition-delay: 0.2s; }
.anim-delay-3 { transition-delay: 0.3s; }
.anim-delay-4 { transition-delay: 0.4s; }
.anim-delay-5 { transition-delay: 0.5s; }
.anim-delay-6 { transition-delay: 0.6s; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-image { display: none; }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr 1fr; }
    .process-grid { grid-template-columns: 1fr 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .blog-grid { grid-template-columns: 1fr 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; text-align: center; }
    .case-study-grid { grid-template-columns: 1fr; }
    .case-study-grid.reverse { direction: ltr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .course-hero-inner { grid-template-columns: 1fr; text-align: center; }
    .contact-wrapper { grid-template-columns: 1fr; }

    /* Center hero content when single column */
    .hero-content { text-align: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-cta-group { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-stat { align-items: center; }

    /* Center course hero */
    .course-hero-meta { justify-content: center; }
    .course-hero-btn { margin: 0 auto; }

    /* Center about section */
    .about-text { text-align: center; }
    .tech-badges { justify-content: center; }

    /* Center case study */
    .case-study-body { text-align: center; }
    .case-study-features { display: inline-block; text-align: left; }

    /* Center contact info */
    .contact-info { text-align: center; }
    .contact-detail { justify-content: center; }
}

@media (max-width: 768px) {
    .section-padding { padding: 60px 0; }
    .section-header { margin-bottom: 40px; }

    /* Mobile nav — fully opaque background */
    nav#mainNav {
        background: #06060f !important;
        backdrop-filter: none !important;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: #06060f !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        flex-direction: column;
        justify-content: flex-start;
        padding: 32px 24px;
        gap: 4px;
        transform: translateX(100%);
        transition: transform 0.4s var(--ease);
        z-index: 999;
    }
    .nav-links.open { transform: translateX(0); }

    .nav-links a {
        font-size: 1.1rem;
        padding: 14px 16px;
        width: 100%;
        text-align: center;
    }

    .hamburger { display: block; }

    .hero-stats { gap: 20px; }
    .hero-cta-group { flex-direction: column; align-items: center; }
    .hero-cta-group .btn { text-align: center; width: 100%; }
    .hero-subtitle { font-size: 1rem; }

    .portfolio-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .course-topics-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: 1fr; }
    .service-type-selector { flex-direction: column; }

    .course-hero-meta { flex-direction: column; gap: 12px; align-items: center; }

    /* Center portfolio card content */
    .portfolio-card-body { text-align: center; }
    .portfolio-tags { justify-content: center; }

    /* Center blog card content */
    .blog-card-body { text-align: center; }
    .blog-card-link { justify-content: center; }

    /* Center why cards */
    .why-card { flex-direction: column; align-items: center; text-align: center; }

    /* Center footer columns */
    .footer-brand { text-align: center; }
    .footer-brand .logo { margin: 0 auto 16px; }
    .footer-col { text-align: center; }
    .footer-col ul { display: flex; flex-direction: column; align-items: center; }
    .footer-billing { text-align: center; }

    /* Center course topic cards */
    .course-topic-card { flex-direction: column; align-items: center; text-align: center; }

    /* Center value cards */
    .value-card { text-align: center; }
    .value-card-icon { margin: 0 auto 12px; }
}

@media (max-width: 480px) {
    .hero { padding: calc(var(--nav-height) + 32px) 0 48px; }
    .hero-stats { flex-direction: column; gap: 12px; align-items: center; }
    .container { padding: 0 16px; }
}