/* ===========================
   Interview Rise — Landing Page Styles
   Modern SaaS / Professional / Premium
   =========================== */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --color-primary: #6366F1;
    --color-primary-light: #818CF8;
    --color-primary-dark: #4F46E5;
    --color-primary-50: #EEF2FF;
    --color-primary-100: #E0E7FF;
    --color-primary-200: #C7D2FE;
    --color-accent: #8B5CF6;
    --color-accent-light: #A78BFA;

    --color-bg: #FAFBFF;
    --color-bg-alt: #F1F3F9;
    --color-surface: #FFFFFF;
    --color-surface-elevated: #FFFFFF;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;

    --color-text: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-tertiary: #94A3B8;
    --color-text-inverse: #FFFFFF;

    --color-positive: #10B981;
    --color-positive-bg: #ECFDF5;
    --color-warning: #F59E0B;
    --color-warning-bg: #FFFBEB;

    /* 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;
    --font-size-6xl: 3.75rem;

    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.15;
    --line-height-snug: 1.3;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.75;

    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.05em;

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

    /* Layout */
    --container-max: 1200px;
    --container-padding: var(--space-6);
    --section-padding: var(--space-24);
    --header-height: 72px;

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

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-glow: 0 0 40px rgba(99,102,241,0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + var(--space-4));
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* --- Skip Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-4);
}

/* --- Container --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    line-height: 1;
    border: 2px solid transparent;
}

.btn:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

.btn-sm {
    padding: var(--space-2) var(--space-5);
    font-size: var(--font-size-sm);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-text-inverse);
    box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(99,102,241,0.4);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    border-color: var(--color-border);
    color: var(--color-text);
    background: var(--color-surface);
}

.btn-outline:hover {
    border-color: var(--color-primary-light);
    color: var(--color-primary);
    background: var(--color-primary-50);
}

.btn-glow {
    box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}

.btn-glow:hover {
    box-shadow: 0 6px 30px rgba(99,102,241,0.5);
}

.btn-icon {
    flex-shrink: 0;
}

/* ===========================
   HEADER
   =========================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 100;
    background: rgba(250, 251, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border-light);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    color: var(--color-text);
    flex-shrink: 0;
}

.logo:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.logo-icon {
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: var(--space-1);
}

.nav-link {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-50);
}

.nav-link:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background-color: var(--color-primary-50);
}

.mobile-menu-toggle:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===========================
   HERO
   =========================== */
.hero {
    position: relative;
    padding-top: calc(var(--header-height) + var(--space-16));
    padding-bottom: var(--space-24);
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-4) var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    background: var(--color-primary-50);
    border: 1px solid var(--color-primary-200);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 5vw, var(--font-size-6xl));
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text);
    margin-bottom: var(--space-6);
}

.hero-highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
    max-width: 480px;
    margin-bottom: var(--space-10);
}

.hero-cta-group {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

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

.hero-mockup {
    width: 100%;
    max-width: 460px;
    perspective: 1000px;
}

.mockup-screen {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transform: rotateY(-3deg) rotateX(2deg);
    transition: transform var(--transition-slow);
}

.mockup-screen:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.mockup-header-bar {
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border-light);
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-border);
}

.mockup-dots span:first-child { background: #EF4444; }
.mockup-dots span:nth-child(2) { background: #F59E0B; }
.mockup-dots span:last-child { background: #10B981; }

.mockup-content {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
}

.mockup-avatar {
    margin-bottom: var(--space-2);
}

.mockup-wave-group {
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
    height: 32px;
}

.mockup-wave {
    width: 4px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    animation: wave-anim 1.2s ease-in-out infinite;
}

.mockup-wave:nth-child(1) { height: 12px; animation-delay: 0s; }
.mockup-wave:nth-child(2) { height: 20px; animation-delay: 0.15s; }
.mockup-wave:nth-child(3) { height: 28px; animation-delay: 0.3s; }
.mockup-wave:nth-child(4) { height: 20px; animation-delay: 0.45s; }
.mockup-wave:nth-child(5) { height: 12px; animation-delay: 0.6s; }

@keyframes wave-anim {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.5); }
}

.mockup-bubble {
    width: 100%;
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    position: relative;
}

.mockup-bubble-label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.mockup-bubble-ai {
    background: var(--color-primary-50);
    color: var(--color-text);
    border: 1px solid var(--color-primary-100);
}

.mockup-bubble-ai .mockup-bubble-label {
    color: var(--color-primary);
}

.mockup-bubble-user {
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.mockup-bubble-user .mockup-bubble-label {
    color: var(--color-text-secondary);
}

/* Hero background gradient */
.hero-bg-gradient {
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* ===========================
   SECTIONS (shared)
   =========================== */
.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-16);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 3.5vw, var(--font-size-4xl));
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-snug);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   HOW IT WORKS
   =========================== */
.how-it-works {
    background-color: var(--color-bg-alt);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.step-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.step-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary-100);
    line-height: 1;
    margin-bottom: var(--space-4);
}

.step-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    background: var(--color-primary-50);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.step-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.step-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   FEATURES
   =========================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-200);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin-bottom: var(--space-5);
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   INTERVIEW TYPES
   =========================== */
.interview-types {
    background-color: var(--color-bg-alt);
}

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

.type-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-200);
}

.type-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    margin-bottom: var(--space-5);
}

.type-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.type-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   EVALUATION REPORT
   =========================== */
.evaluation-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.eval-report-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.eval-report-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    padding: var(--space-8);
    color: var(--color-text-inverse);
}

.eval-report-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    backdrop-filter: blur(4px);
}

.eval-report-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-1);
}

.eval-report-meta {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.eval-section {
    padding: var(--space-6) var(--space-8);
    border-bottom: 1px solid var(--color-border-light);
}

.eval-section:last-child {
    border-bottom: none;
}

.eval-section-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.eval-section-title.eval-positive {
    color: var(--color-positive);
}

.eval-section-title.eval-improve {
    color: var(--color-warning);
}

/* Score bar */
.eval-score-bar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.eval-score-track {
    flex: 1;
    height: 8px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.eval-score-fill {
    height: 100%;
    width: var(--score-width, 0%);
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    transition: width 1.5s ease;
}

.eval-score-value {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    white-space: nowrap;
}

/* Eval columns */
.eval-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.eval-columns .eval-section {
    border-right: 1px solid var(--color-border-light);
}

.eval-columns .eval-section:last-child {
    border-right: none;
}

.eval-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.eval-list li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding-left: var(--space-5);
    position: relative;
    line-height: var(--line-height-relaxed);
}

.eval-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-border);
}

.eval-positive + .eval-list li::before {
    background: var(--color-positive);
}

.eval-improve + .eval-list li::before {
    background: var(--color-warning);
}

/* STAR grid */
.eval-star-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.eval-star-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.eval-star-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    min-width: 56px;
}

.eval-mini-bar {
    flex: 1;
    height: 6px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.eval-mini-fill {
    height: 100%;
    width: var(--mini-width, 0%);
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    transition: width 1.5s ease;
}

/* Metrics */
.eval-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.eval-metric {
    text-align: center;
    padding: var(--space-4);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.eval-metric-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.eval-metric-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

/* Advice */
.eval-advice {
    background: var(--color-primary-50);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    border-left: 3px solid var(--color-primary);
}

.eval-advice p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Eval features list */
.eval-features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding-top: var(--space-4);
}

.eval-feature-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.eval-feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    flex-shrink: 0;
}

.eval-feature-item h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.eval-feature-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   TRUST & PRIVACY
   =========================== */
.trust {
    background-color: var(--color-bg-alt);
}

.trust-inner {
    display: flex;
    align-items: flex-start;
    gap: var(--space-12);
    max-width: 800px;
    margin: 0 auto;
}

.trust-icon-group {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.trust-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--space-4);
}

.trust-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-6);
}

.trust-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

/* ===========================
   FAQ
   =========================== */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    background: var(--color-surface);
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item[open] {
    border-color: var(--color-primary-200);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    color: var(--color-text);
    list-style: none;
    transition: color var(--transition-fast);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::marker {
    display: none;
    content: '';
}

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

.faq-question:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: -3px;
    border-radius: var(--radius-md);
}

.faq-chevron {
    flex-shrink: 0;
    color: var(--color-text-tertiary);
    transition: transform var(--transition-base);
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-6) var(--space-5);
}

.faq-answer p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===========================
   BETA CTA
   =========================== */
.beta-cta {
    padding: var(--space-24) 0;
}

.beta-cta-inner {
    position: relative;
    text-align: center;
    padding: var(--space-20) var(--space-8);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.beta-cta-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 60%),
                radial-gradient(circle at 70% 80%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.beta-cta-title {
    font-size: clamp(var(--font-size-2xl), 3.5vw, var(--font-size-4xl));
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-4);
    position: relative;
}

.beta-cta-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--space-10);
    position: relative;
}

.beta-cta .btn-primary {
    background: var(--color-surface);
    color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: relative;
}

.beta-cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

/* ===========================
   FOOTER
   =========================== */
.site-footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.7);
    padding-top: var(--space-16);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo .logo-text {
    color: var(--color-text-inverse);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.5);
    margin-top: var(--space-3);
}

.footer-links {
    display: flex;
    gap: var(--space-16);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-inverse);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    margin-bottom: var(--space-4);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

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

.footer-col a:hover {
    color: var(--color-text-inverse);
}

.footer-col a:focus-visible {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
    border-radius: 2px;
}

.footer-bottom {
    padding: var(--space-6) 0;
    text-align: center;
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.4);
}

/* ===========================
   SCROLL REVEAL ANIMATIONS
   =========================== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children */
.reveal-stagger .reveal {
    transition-delay: calc(var(--stagger-index, 0) * 80ms);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .badge-dot {
        animation: none;
    }

    .mockup-wave {
        animation: none;
    }

    .mockup-screen {
        transform: none;
    }

    .mockup-screen:hover {
        transform: none;
    }

    .step-card:hover,
    .feature-card:hover,
    .type-card:hover {
        transform: none;
    }

    .btn-primary:hover,
    .beta-cta .btn-primary:hover {
        transform: none;
    }
}

/* ===========================
   RESPONSIVE
   =========================== */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: var(--space-16);
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: var(--space-12);
        text-align: center;
    }

    .hero-subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-visual {
        order: -1;
    }

    .hero-mockup {
        max-width: 380px;
    }

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

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

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

    .evaluation-showcase {
        grid-template-columns: 1fr;
    }

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --container-padding: var(--space-4);
        --section-padding: var(--space-12);
        --header-height: 64px;
    }

    /* Mobile nav */
    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        padding: var(--space-4);
    }

    .main-nav.is-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-base);
    }

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

    .header-actions .btn {
        display: none;
    }

    /* Hero */
    .hero {
        padding-top: calc(var(--header-height) + var(--space-10));
        padding-bottom: var(--space-16);
    }

    .hero-badge {
        margin-bottom: var(--space-4);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta-group {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta-group .btn {
        width: 100%;
        max-width: 300px;
    }

    .mockup-screen {
        transform: none;
    }

    /* Steps */
    .steps-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .step-card {
        padding: var(--space-6);
        display: grid;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        gap: 0 var(--space-4);
        text-align: left;
    }

    .step-number {
        display: none;
    }

    .step-icon {
        grid-row: 1 / 3;
        margin: 0;
        width: 48px;
        height: 48px;
        align-self: start;
    }

    .step-title {
        font-size: var(--font-size-base);
        margin-bottom: var(--space-1);
    }

    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: var(--space-6);
    }

    /* Types */
    .types-grid {
        grid-template-columns: 1fr;
    }

    .type-card {
        padding: var(--space-6);
    }

    /* Evaluation */
    .eval-columns {
        grid-template-columns: 1fr;
    }

    .eval-columns .eval-section {
        border-right: none;
        border-bottom: 1px solid var(--color-border-light);
    }

    .eval-star-grid {
        grid-template-columns: 1fr;
    }

    .eval-metrics-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2);
    }

    .eval-section {
        padding: var(--space-4) var(--space-5);
    }

    .eval-report-header {
        padding: var(--space-6);
    }

    .eval-features-list {
        grid-template-columns: 1fr;
    }

    /* Trust */
    .trust-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .trust-items {
        align-items: center;
    }

    /* Beta CTA */
    .beta-cta-inner {
        padding: var(--space-12) var(--space-6);
    }

    /* Footer */
    .footer-inner {
        flex-direction: column;
        gap: var(--space-8);
    }

    .footer-links {
        gap: var(--space-8);
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .eval-metrics-grid {
        grid-template-columns: 1fr;
    }

    .faq-question {
        padding: var(--space-4) var(--space-5);
        font-size: var(--font-size-sm);
    }

    .faq-answer {
        padding: 0 var(--space-5) var(--space-4);
    }
}