/* ===========================================
   Author Proof Marketing Site
   Color variables at top for easy brand swap
   =========================================== */

@font-face {
    font-family: 'Geist';
    src: url('../fonts/a369fcf5.woff2') format('woff2');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Geist';
    src: url('../fonts/5aa7d48f.woff2') format('woff2');
    font-weight: 100 900;
    font-style: italic;
    font-display: swap;
}

:root {
    /* Primary brand colors - Proctorio */
    --color-primary: #1B8B3D;
    --color-primary-light: #7EC953;
    --color-primary-dark: #14692E;

    /* Accent color - Proctorio green for CTAs */
    --color-accent: #1B8B3D;
    --color-accent-light: #25A54A;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f7fafc;
    --color-gray-100: #edf2f7;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e0;
    --color-gray-600: #4a5568;
    --color-gray-700: #2d3748;
    --color-gray-900: #1a202c;

    /* Typography */
    --font-family: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 5rem 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    background: var(--color-white);
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3 {
    color: var(--color-gray-900);
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 100;
}

.nav {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    height: 32px;
    width: auto;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.nav-cta {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 2px solid var(--color-accent);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-cta:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

/* Hero Section */
.hero {
    padding: 8rem 1.5rem 5rem;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.hero h1 {
    margin-bottom: 1.5rem;
}

/* Hero tagline */
.hero-tagline {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
}

.tagline-old {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    font-weight: 500;
    text-decoration: line-through;
    text-decoration-color: var(--color-gray-300);
}

.tagline-new {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 700;
}

.tagline-new em {
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: 2.5rem;
}

/* Demo Animation Container */
.demo-container {
    position: relative;
    min-height: 400px;
}

.demo-stage {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.demo-stage.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Demo Windows */
.demo-window {
    width: 100%;
    max-width: 420px;
    background: var(--color-white);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.window-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-200);
}

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

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-gray-300, #cbd5e0);
}

.window-dots span:nth-child(1) { background: #fc5c65; }
.window-dots span:nth-child(2) { background: #fed330; }
.window-dots span:nth-child(3) { background: #26de81; }

.window-title {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-600);
}

.window-content {
    padding: 1.5rem;
}

/* Stage 1: Document */
.document-window .window-content {
    min-height: 200px;
}

.doc-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.typing-text {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    min-height: 100px;
}

.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--color-primary);
    margin-left: 2px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Stage 2: Processing */
.processing-visual {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
}

.doc-mini {
    width: 60px;
    height: 75px;
    background: var(--color-white);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.doc-lines span {
    display: block;
    height: 4px;
    background: var(--color-gray-200);
    border-radius: 2px;
    margin-bottom: 6px;
}

.doc-lines span:last-child {
    width: 60%;
}

.processing-arrow {
    color: var(--color-accent);
    animation: pulse-arrow 1.5s infinite;
}

@keyframes pulse-arrow {
    0%, 100% { opacity: 0.5; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

.ai-brain {
    position: relative;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.brain-pulses {
    position: absolute;
    inset: -10px;
}

.brain-pulses span {
    position: absolute;
    inset: 0;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    animation: pulse-ring 2s infinite;
}

.brain-pulses span:nth-child(2) { animation-delay: 0.5s; }
.brain-pulses span:nth-child(3) { animation-delay: 1s; }

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.5); opacity: 0; }
}

.questions-mini {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.q-line {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-white);
    padding: 8px 12px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    animation: pop-in 0.3s ease forwards;
    opacity: 0;
}

.q-line:nth-child(1) { animation-delay: 0.3s; }
.q-line:nth-child(2) { animation-delay: 0.6s; }
.q-line:nth-child(3) { animation-delay: 0.9s; }

@keyframes pop-in {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

.q-bullet {
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.q-line .q-text {
    width: 60px;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: 4px;
}

.processing-label {
    margin-top: 1.5rem;
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

/* Stage 3: Quiz */
.quiz-window .window-header {
    justify-content: flex-start;
}

.proctorio-badge {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-primary);
    padding: 4px 8px;
    border-radius: 4px;
}

.quiz-content {
    padding: 1.25rem;
}

.q-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.q-text-full {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.q-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.q-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 6px;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.q-option.selected {
    background: rgba(49, 130, 206, 0.1);
    border-color: var(--color-accent);
}

.radio {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-gray-300, #a0aec0);
    border-radius: 50%;
    position: relative;
}

.radio.checked {
    border-color: var(--color-accent);
}

.radio.checked::after {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* Stage 4: SpeedGrader Results */
.results-content {
    padding: 1.5rem;
}

.sg-submission-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
    margin-bottom: 0.75rem;
}

.sg-student-info {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.sg-avatar {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6875rem;
    font-weight: 700;
}

.sg-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.sg-badges {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sg-ap-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s ease;
}

.sg-ap-badge:hover {
    background: var(--color-accent-light);
}

.sg-ap-badge svg {
    width: 14px;
    height: 14px;
}

.sg-ap-label {
    font-size: 0.6875rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

.sg-detail-hint {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.6875rem;
    color: var(--color-gray-600);
    margin-bottom: 1rem;
    padding-left: 0.25rem;
}

.sg-detail-hint svg {
    color: var(--color-primary);
}

.authorship-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.8125rem;
}

.authorship-badge.verified {
    background: rgba(126, 201, 83, 0.2);
    color: #14692E;
}

.authorship-badge svg {
    color: #7EC953;
}

/* Quiz cycling animation */
.quiz-content {
    transition: background-color 0.1s ease;
}

.quiz-content.question-flash {
    background-color: var(--color-gray-50);
}

.q-number {
    transition: color 0.15s ease;
}

.q-text-full {
    transition: opacity 0.1s ease;
}

/* Proctorio Toolbar */
.proctorio-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 420px;
    margin-top: 12px;
    padding: 10px 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    animation: toolbar-pulse 2s ease-in-out infinite;
}

@keyframes toolbar-pulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); }
    50% { box-shadow: 0 4px 20px rgba(126, 201, 83, 0.4); }
}

.toolbar-brand {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-white);
    font-size: 0.8125rem;
    font-weight: 600;
}

.toolbar-brand svg {
    color: #7EC953;
}

.toolbar-indicators {
    display: flex;
    gap: 12px;
}

.indicator {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.6);
}

.indicator.active {
    color: #7EC953;
    background: rgba(126, 201, 83, 0.2);
}

.toolbar-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.6875rem;
    font-weight: 500;
    color: #7EC953;
}

.status-dot {
    width: 6px;
    height: 6px;
    background: #7EC953;
    border-radius: 50%;
    animation: status-blink 1.5s ease-in-out infinite;
}

@keyframes status-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Problem Section */
.problem {
    padding: var(--section-padding);
    background: var(--color-white);
}

.problem h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.problem-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

.problem-intro em {
    font-style: italic;
    color: var(--color-gray-900);
    font-weight: 600;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.problem-card {
    padding: 2rem;
    background: var(--color-gray-50);
    border-radius: 12px;
    border: 1px solid var(--color-gray-200);
}

.problem-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--color-white);
}

.problem-card h3 {
    color: var(--color-gray-900);
}

.problem-card p {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
}

.problem-card.highlighted {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-color: var(--color-primary);
}

.problem-card.highlighted .problem-icon {
    background: rgba(255, 255, 255, 0.2);
}

.problem-card.highlighted h3 {
    color: var(--color-white);
}

.problem-card.highlighted p {
    color: rgba(255, 255, 255, 0.9);
}

/* How It Works Section (combined with screenshots) */
.how-section {
    padding: var(--section-padding);
    background: var(--color-gray-50);
}

.how-section h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.how-section-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto 4rem;
}

.how-steps {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.how-step {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

.how-step.reverse {
    grid-template-columns: 1.2fr 1fr;
}

.how-step.reverse .how-step-text {
    order: 2;
}

.how-step.reverse .how-step-image {
    order: 1;
}

.how-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.how-step-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.how-step-text p {
    color: var(--color-gray-600);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.how-step-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.how-step-details li {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    padding-left: 1.25rem;
    position: relative;
    line-height: 1.5;
}

.how-step-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

.how-step-details li strong {
    color: var(--color-gray-900);
    font-weight: 600;
}

/* Compact steps (no screenshot) */
.how-step-compact {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    max-width: 740px;
    margin: 0 auto;
    padding: 2rem 2.5rem;
    background: var(--color-white);
    border-radius: 12px;
    border: 1px solid var(--color-gray-200);
    align-items: flex-start;
}

.how-step-compact .how-step-number {
    margin-bottom: 0;
    margin-top: 0.125rem;
}

.how-step-compact-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.how-step-compact-text p {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin: 0;
}

/* Features Section */
.features {
    padding: var(--section-padding);
    background: var(--color-white);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.feature {
    padding: 1.5rem;
}

.feature h3 {
    color: var(--color-primary);
}

.feature p {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
}

/* Screenshot Frames (shared) */
.screenshot-frame {
    background: var(--color-gray-100);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.screenshot-frame-dots {
    display: flex;
    gap: 6px;
    padding: 10px 14px;
    background: var(--color-gray-200);
}

.screenshot-frame-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.screenshot-frame-dots span:nth-child(1) { background: #fc5c65; }
.screenshot-frame-dots span:nth-child(2) { background: #fed330; }
.screenshot-frame-dots span:nth-child(3) { background: #26de81; }

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

/* Differentiator Section */
.differentiator {
    padding: var(--section-padding);
    background: var(--color-gray-50);
}

.differentiator h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.diff-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.diff-card {
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid;
}

.diff-old {
    background: var(--color-white);
    border-color: var(--color-gray-200);
}

.diff-new {
    background: rgba(27, 139, 61, 0.04);
    border-color: var(--color-primary);
}

.diff-label {
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-gray-200);
}

.diff-old .diff-label {
    color: var(--color-gray-600);
}

.diff-new .diff-label {
    color: var(--color-primary);
}

.diff-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.diff-card li {
    font-size: 0.9375rem;
    color: var(--color-gray-700);
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.5;
}

.diff-old li::before {
    content: '×';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: 700;
    font-size: 1.125rem;
    line-height: 1.3;
}

.diff-new li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 0.875rem;
    line-height: 1.5;
}

.diff-card li strong {
    font-weight: 700;
    color: var(--color-gray-900);
}

.diff-card li em {
    font-style: italic;
}

/* Feature Icons */
.feature-icon {
    width: 44px;
    height: 44px;
    background: rgba(27, 139, 61, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

/* CTA Section */
.cta {
    padding: var(--section-padding);
    background: var(--color-gray-50);
    text-align: center;
}

.cta h2 {
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    padding: 3rem 1.5rem 2rem;
    background: var(--color-gray-900);
    color: var(--color-gray-200);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-gray-700);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-gray-200);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

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

.copyright {
    font-size: 0.8125rem;
    opacity: 0.6;
}

/* Responsive */
/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.header.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Responsive */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-text {
        text-align: center;
        order: 2;
    }

    .demo-container {
        order: 1;
        min-height: 350px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .hero {
        padding: 7rem 1.5rem 3rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .demo-container {
        min-height: 320px;
    }

    .demo-window {
        max-width: 100%;
    }

    .processing-visual {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
        padding: 1rem;
    }

    .processing-arrow {
        display: none;
    }

    .proctorio-toolbar {
        padding: 8px 12px;
    }

    .toolbar-status {
        display: none;
    }

    .how-step-compact {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .how-step,
    .how-step.reverse {
        grid-template-columns: 1fr;
    }

    .how-step.reverse .how-step-text,
    .how-step.reverse .how-step-image {
        order: unset;
    }

    .how-step-compact {
        padding: 1.5rem;
    }

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

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