/* ============================================
   INSIGHT WERT - MAIN STYLESHEET
   Design System & Global Styles
   ============================================ */

/* ============================================
   CSS VARIABLES (Design Tokens)
   ============================================ */
:root {
    /* Primary Colors */
    --color-primary: #2563EB;
    --color-primary-dark: #1E3A5F;
    --color-primary-light: #3B82F6;
    --color-primary-bg: #EFF6FF;

    /* Secondary Colors */
    --color-secondary: #1E293B;
    --color-secondary-light: #334155;

    /* Accent Colors */
    --color-accent: #22C55E;
    --color-accent-dark: #16A34A;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

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

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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);
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-4);
}

.text-muted {
    color: var(--color-gray-500);
}

.text-small {
    font-size: var(--font-size-sm);
}

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

/* ============================================
   LAYOUT & CONTAINER
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-20) 0;
}

.section-sm {
    padding: var(--spacing-12) 0;
}

.section-lg {
    padding: var(--spacing-24) 0;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary-dark);
}

.logo img {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    list-style: none;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
    position: relative;
}

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

/* Dropdown Menu */
.nav-item-dropdown {
    position: relative;
}

.nav-item-dropdown .nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.nav-item-dropdown .nav-link::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    transition: transform var(--transition-fast);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    padding: var(--spacing-2) 0;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    list-style: none;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
}

.dropdown-menu .badge {
    display: inline-block;
    padding: 2px 6px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(34, 197, 94, 0.1);
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-2);
}

/* Language Switcher */
.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    border: none;
}

.lang-switch:hover {
    background: var(--color-gray-200);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-2);
    background: none;
    border: none;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    transition: all var(--transition-fast);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    text-decoration: none;
    cursor: pointer;
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

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

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

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

.btn-accent:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-white);
}

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

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding-top: calc(72px + var(--spacing-16));
    padding-bottom: var(--spacing-16);
    background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    color: var(--color-white);
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-8);
}

.hero-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-6);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-form .form-group {
    margin-bottom: var(--spacing-4);
}

.hero-form label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: var(--spacing-2);
}

.hero-form input {
    width: 100%;
    padding: var(--spacing-4);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.hero-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
}

.hero-form .btn {
    width: 100%;
    margin-top: var(--spacing-2);
}

.trust-indicators {
    display: flex;
    gap: var(--spacing-6);
    margin-top: var(--spacing-6);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-300);
}

.trust-item svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-6);
    transition: all var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-2xl);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
}

.card-text {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-4);
}

/* Service Cards */
.service-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-primary);
}

.service-card.featured {
    border-color: var(--color-primary);
    position: relative;
}

.service-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
}

.service-price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-4);
}

.service-price span {
    font-size: var(--font-size-base);
    font-weight: 400;
    color: var(--color-gray-500);
}

.service-features {
    list-style: none;
    margin: var(--spacing-6) 0;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.service-features li:last-child {
    border-bottom: none;
}

.service-features svg {
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   SECTIONS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-12);
}

.section-header h2 {
    margin-bottom: var(--spacing-4);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
}

/* How It Works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
    counter-reset: step;
}

.step-card {
    text-align: center;
    padding: var(--spacing-6);
    position: relative;
}

.step-number {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-4);
}

.step-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    font-size: 2rem;
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-4);
}

/* Checklist */
.checklist {
    list-style: none;
}

.checklist li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
    font-size: var(--font-size-base);
}

.checklist svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Two Column Layout */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.two-col-reverse {
    direction: rtl;
}

.two-col-reverse>* {
    direction: ltr;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about-content h2 {
    margin-bottom: var(--spacing-6);
}

.about-content p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-4);
}

.about-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.about-trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.about-trust-item svg {
    color: var(--color-accent);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-16) 0;
}

.cta-section h2 {
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.cta-section p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-8);
}

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

.cta-section .btn-primary:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

/* ============================================
   RELATED ARTICLES SECTION
   ============================================ */
.related-articles {
    margin-top: var(--spacing-12);
    margin-bottom: var(--spacing-8);
}

.related-articles > h2 {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
}

.related-article-card {
    display: block;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-6);
    text-decoration: none;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-100);
}

.related-article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.related-article-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    display: block;
    margin-bottom: var(--spacing-2);
}

.related-article-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.4;
}

.related-article-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
    margin: 0;
}

@media (max-width: 768px) {
    .related-articles-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   FAQ ACCORDION
   ============================================ */
.faq-section {
    margin-top: var(--spacing-12);
}

.faq-section > h2 {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

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

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-5) var(--spacing-6);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: 0 var(--spacing-6) var(--spacing-5);
    color: var(--color-gray-600);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: var(--spacing-2);
}

.form-card {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.footer-description {
    font-size: var(--font-size-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-6);
}

.footer-social {
    display: flex;
    gap: var(--spacing-3);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-gray-300);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-4);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-3);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-6);
}

.footer-legal a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.footer-legal a:hover {
    color: var(--color-white);
}

/* ============================================
   BACKGROUND SECTIONS
   ============================================ */
.bg-light {
    background: var(--color-gray-50);
}

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

.bg-gradient {
    background: linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-white) 100%);
}

/* ============================================
   UTILITIES
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mb-4 {
    margin-bottom: var(--spacing-4) !important;
}

.mb-8 {
    margin-bottom: var(--spacing-8) !important;
}

.mt-0 {
    margin-top: 0 !important;
}

.mt-4 {
    margin-top: var(--spacing-4) !important;
}

.mt-8 {
    margin-top: var(--spacing-8) !important;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-image {
        display: none;
    }

    .trust-indicators {
        justify-content: center;
    }

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

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

@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-5xl: 2.5rem;
    }

    .nav-links {
        display: none;
    }

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

    .features-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }

    .two-col {
        grid-template-columns: 1fr;
    }

    .two-col-reverse {
        direction: ltr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-12) 0;
    }

    .hero {
        padding-top: calc(72px + var(--spacing-10));
        padding-bottom: var(--spacing-10);
    }

    .trust-indicators {
        flex-direction: column;
        align-items: center;
    }
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */
.mobile-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: var(--spacing-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
    overflow-y: auto;
}

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

.mobile-nav-links {
    list-style: none;
}

.mobile-nav-links li {
    border-bottom: 1px solid var(--color-gray-100);
}

.mobile-nav-links a {
    display: block;
    padding: var(--spacing-4) 0;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-gray-800);
}

.mobile-nav-links a:hover {
    color: var(--color-primary);
}

.mobile-dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: var(--spacing-4) 0;
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-gray-800);
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-dropdown-menu {
    display: none;
    padding-left: var(--spacing-4);
}

.mobile-dropdown-menu.active {
    display: block;
}

.mobile-dropdown-menu a {
    font-size: var(--font-size-base);
    padding: var(--spacing-3) 0;
}

/* ============================================
   BLOG GRID
   ============================================ */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
}

.blog-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.blog-card-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.blog-card-content {
    padding: var(--spacing-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-card-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-2);
}

.blog-card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
    line-height: 1.3;
}

.blog-card-title a {
    color: var(--color-gray-900);
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-card-excerpt {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
    flex: 1;
}

.blog-card-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
}

.blog-card-link:hover {
    gap: var(--spacing-3);
}

.blog-coming-soon {
    text-align: center;
    margin-top: var(--spacing-12);
    padding: var(--spacing-12);
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
}

.blog-coming-soon h3 {
    margin-bottom: var(--spacing-4);
}

.blog-coming-soon p {
    color: var(--color-gray-600);
    max-width: 500px;
    margin: 0 auto var(--spacing-6);
}

@media (max-width: 1024px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-card-image {
        height: 180px;
    }
}

/* ============================================
   CASE STUDIES
   ============================================ */
.case-study {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--spacing-8);
}

.case-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-8);
}

.case-header h2 {
    margin: 0 0 var(--spacing-2) 0;
    color: var(--color-white) !important;
    font-size: var(--font-size-2xl);
}

.case-meta {
    display: flex;
    gap: var(--spacing-6);
    flex-wrap: wrap;
    margin-top: var(--spacing-4);
}

.case-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.case-body {
    padding: var(--spacing-8);
}

.case-section {
    margin-bottom: var(--spacing-6);
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-section h3 {
    font-size: var(--font-size-base);
    color: var(--color-primary);
    margin: 0 0 var(--spacing-3) 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.case-section p {
    margin: 0;
    color: var(--color-gray-600);
}

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

.findings-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-2) 0;
    color: var(--color-gray-600);
}

.findings-list li svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.result-card {
    background: var(--color-gray-50);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    text-align: center;
}

.result-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-1);
}

.result-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    text-transform: uppercase;
}

.roi-banner {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.roi-banner strong {
    font-size: var(--font-size-lg);
}

.pattern-section {
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-12);
    border-radius: var(--radius-xl);
    text-align: center;
    margin: var(--spacing-12) 0;
}

.pattern-section h2 {
    color: var(--color-white) !important;
    margin: 0 0 var(--spacing-4) 0;
}

.pattern-section p {
    color: var(--color-gray-300);
    max-width: 600px;
    margin: 0 auto;
}

.disclaimer {
    background: var(--color-gray-50);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-4) var(--spacing-6);
    margin-bottom: var(--spacing-8);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.industry-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Hero outline button for light-on-dark contexts */
.btn-outline-light {
    color: var(--color-white);
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    color: var(--color-white);
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {

    .header,
    .footer,
    .cta-section {
        display: none;
    }

    .hero {
        padding-top: 0;
        background: none;
        color: var(--color-gray-900);
    }

    .hero h1 {
        color: var(--color-gray-900);
    }
}

/* Calculator Grid - Masaüstü */
.calculator-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
}


/* ============================================
   CALCULATOR CARD STYLES
   ============================================ */

/* Background and Colour */
.calculator-card {
    background: linear-gradient(135deg, #1E3A5F 0%, #2563EB 100%) !important;
    /* Mevcut beyaz background'u ezer */
    color: var(--color-white);
    padding: 2rem;
}

/* Header and ICON */
.calc-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.calc-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.5rem;
}

.calc-header h3 {
    color: var(--color-white);
    margin: 0;
}

/* GRİD */
.calc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    /* Masaüstünde 3 yan yana */
    gap: 1rem;
    text-align: center;
}

/* 3 Stat Box */
.calc-stat-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
}

.calc-label {
    font-size: 0.75rem;
    opacity: 0.8;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calc-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Alt Açıklama */
.calc-disclaimer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.9);
}

/* ============================================
   MOBILE  (RESPONSIVE)
   ============================================ */
@media (max-width: 640px) {

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

    .calc-stat-box {
        margin-bottom: 0.5rem;
    }
}

/* ============================================
   BUTTON GROUP & RESPONSIVE ALIGNMENT
   ============================================ */
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);
    /* style.css'deki 1rem boşluk değişkeni */
    margin-top: var(--spacing-8);
}

@media (max-width: 768px) {
    .hero-actions {
        flex-direction: column;
        /* Mobilde butonları alt alta diz */
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
        /* Mobilde butonlar tam genişlik olsun */
        justify-content: center;
        margin-left: 0 !important;
        /* Kaymaya neden olan marginleri sıfırla */
    }

    .section-header h2 {
        font-size: var(--font-size-3xl) !important;
        /* Başlığı mobilde optimize et */
    }
}

/* ============================================
   CTA BUTTON GROUP STYLES
   ============================================ */
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-4);

    align-items: center;
    margin-top: var(--spacing-6);
}


@media (max-width: 768px) {
    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-actions .btn {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .cta-actions .btn+.btn {
        margin-left: 0;
    }
}