/* =================================================================
   Landing Page Styles - SurveyOps
   ================================================================= */

/* =================================================================
   Sign-In Screen (shown before authentication)
   ================================================================= */

.signin-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f2744 0%, #1a365d 50%, #2d4a6f 100%);
    z-index: 9999;
}

.signin-screen.hidden {
    display: none;
}

.signin-card {
    background: var(--bg-white, #fff);
    border-radius: var(--radius-lg, 16px);
    padding: 48px 40px;
    text-align: center;
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-2xl, 0 25px 50px -12px rgba(0, 0, 0, 0.25));
}

.signin-banner {
    width: 280px;
    max-width: 100%;
    margin-bottom: 8px;
}

.signin-subtitle {
    font-size: 1rem;
    color: var(--text-secondary, #6B7280);
    margin-bottom: 32px;
}

.signin-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-secondary, #6B7280);
    font-size: 0.875rem;
}

.signin-loading.hidden {
    display: none;
}

.signin-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-light, #E5E7EB);
    border-top-color: var(--accent-cyan, #319795);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.signin-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: var(--primary-blue, #1a365d);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm, 8px);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast, 150ms);
    margin-bottom: 16px;
}

.signin-btn:hover {
    background: var(--primary-hover, #243c5a);
}

.signin-btn:focus-visible {
    outline: 2px solid var(--accent-cyan, #319795);
    outline-offset: 2px;
}

.signin-btn.hidden {
    display: none;
}

.signin-footer {
    font-size: 0.8125rem;
    color: var(--text-tertiary, #94a3b8);
}

/* Landing Content Layout */
.landing-content {
    padding: 0;
}

.landing-toolbar {
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 0;
    padding: 12px 28px;
    background: var(--bg-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.welcome-text {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 48px 32px 40px;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
    border-bottom: 1px solid var(--border-light);
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* Features Section */
.features-section {
    padding: 36px 48px;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Feature Cards */
.feature-card {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--success-green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(49, 151, 149, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.feature-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 12px 32px -8px rgba(49, 151, 149, 0.25), 0 4px 8px -2px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-card:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.feature-card:focus {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
}

.feature-card-secondary {
    background: var(--bg-light);
}

.feature-card-secondary:hover {
    background: var(--bg-white);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    line-height: 1;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}

.feature-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.highlight-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: var(--bg-gray);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.feature-card:hover .highlight-tag {
    background: rgba(49, 151, 149, 0.12);
    color: var(--accent-cyan);
}

.feature-cta {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    transition: all var(--transition-fast);
}

.feature-card:hover .feature-cta {
    gap: 10px;
    color: #2c7a7b;
}

.feature-card:hover .feature-cta {
    gap: 8px;
}

/* Static feature card (no link) */
.feature-card-static {
    cursor: default;
}

.feature-card-static:hover {
    transform: none;
}

.feature-status {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--success-color, #28a745);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: auto;
}

/* Quick Start Section */
.quickstart-section {
    padding: 36px 48px;
    background: var(--bg-light);
    border-top: 1px solid var(--border-light);
}

.quickstart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.quickstart-step {
    text-align: center;
    padding: 24px 16px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-cyan), #2c7a7b);
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    box-shadow: var(--shadow-md);
}

.quickstart-step h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.quickstart-step p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Landing Footer */
.landing-footer {
    padding: 24px 32px;
    text-align: center;
    border-top: 1px solid var(--border-light);
    background: var(--bg-white);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-link {
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 500;
}

.footer-link:hover {
    text-decoration: underline;
    color: #2c7a7b;
}

/* Hero Tagline */
.hero-tagline {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.tagline-item {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.tagline-divider {
    color: var(--border-light);
    font-weight: 300;
}

/* Section Subtitle */
.section-subtitle {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: -16px;
    margin-bottom: 24px;
}

/* Roadmap Section */
.roadmap-section {
    padding: 36px 48px;
    background: linear-gradient(135deg, var(--bg-light), var(--bg-white));
    border-top: 1px solid var(--border-light);
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}

.roadmap-card {
    padding: 20px;
    background: var(--bg-white);
    border: 1px dashed var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.roadmap-card:hover {
    border-style: solid;
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.roadmap-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.roadmap-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.roadmap-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Completed roadmap items */
.roadmap-card.complete {
    background: var(--success-light, #d4edda);
    border-style: solid;
    border-color: var(--success-color, #28a745);
}

.roadmap-card.complete h4 {
    color: var(--success-dark, #155724);
}

/* Delivered Section Styling */
.delivered-section {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0.02) 100%);
}

.roadmap-card.delivered {
    border-style: solid;
    border-color: var(--success-green, #10b981);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, var(--bg-white) 100%);
    position: relative;
}

.roadmap-card.delivered:hover {
    border-color: var(--success-green, #10b981);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.delivered-badge {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 10px;
    background: var(--success-green, #10b981);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 12px;
    letter-spacing: 0.02em;
}

/* Built-in Features Notice */
.built-in-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
    padding: 14px 24px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(0, 120, 212, 0.08) 100%);
    border: 1px solid var(--success-green);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    color: var(--text-primary);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.built-in-icon {
    font-size: 1.25rem;
}

/* Value Proposition Section */
.value-section {
    padding: 36px 48px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
}

.value-section .section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 24px;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.value-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 16px;
}

.value-icon {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.value-item strong {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.value-item span:last-child {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Documentation Section */
.docs-section {
    padding: 36px 48px;
    background: var(--bg-light);
    border-top: 1px solid var(--border-light);
}

/* =================================================================
   Quick Reference / User Guide Section
   ================================================================= */

.quickref-section {
    padding: 36px 48px;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
}

.quickref-block {
    max-width: 1000px;
    margin: 0 auto 32px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

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

.quickref-block-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

/* Getting Started Steps */
.quickref-steps {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.quickref-step {
    flex: 1;
    min-width: 200px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: white;
    font-weight: 700;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.step-content strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.step-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* Common Tasks */
.quickref-tasks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto 32px;
}

.quickref-task {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.quickref-task:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.task-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
}

.task-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.task-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0 0 8px 0;
}

.task-content a {
    color: var(--primary-blue);
    font-weight: 500;
    text-decoration: none;
}

.task-content a:hover {
    text-decoration: underline;
}

.task-tip {
    font-size: 0.8125rem;
    color: var(--text-muted);
    padding: 8px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary-blue);
}

.task-tip strong {
    color: var(--text-secondary);
}

/* Key Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.metric-card {
    text-align: center;
    padding: 16px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.metric-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.metric-formula {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-family: 'Consolas', 'Monaco', monospace;
    padding: 6px 10px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

.metric-target {
    font-size: 0.8125rem;
    color: var(--success-green);
    font-weight: 500;
}

/* Keyboard Shortcuts */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.shortcut-item kbd {
    display: inline-block;
    padding: 4px 8px;
    font-size: 0.75rem;
    font-family: 'Consolas', 'Monaco', monospace;
    color: var(--text-primary);
    background: var(--bg-gray);
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.shortcut-item span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Troubleshooting */
.quickref-troubleshoot {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.03) 0%, var(--bg-light) 100%);
    border-color: var(--border-light);
}

.troubleshoot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.troubleshoot-item {
    padding: 14px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.troubleshoot-problem {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.troubleshoot-problem::before {
    content: '❓ ';
}

.troubleshoot-solution {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.troubleshoot-solution a {
    color: var(--primary-blue);
    text-decoration: none;
}

.troubleshoot-solution a:hover {
    text-decoration: underline;
}

/* Responsive for Quick Reference */
@media (max-width: 768px) {
    .quickref-section {
        padding: 32px 20px;
    }

    .quickref-block {
        padding: 16px;
    }

    .quickref-steps {
        flex-direction: column;
        gap: 16px;
    }

    .quickref-tasks {
        grid-template-columns: 1fr;
    }

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

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

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

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.docs-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 16px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
}

.docs-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.docs-card:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.docs-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.docs-card h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.docs-card p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
}

.docs-link-secondary {
    font-size: 0.75rem;
    color: var(--primary-blue);
    margin-top: 8px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.docs-link-secondary:hover {
    background: var(--primary-blue);
    color: white;
}

/* Entrance Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.hero-section {
    animation: fadeInUp 0.6s ease-out;
}

.quickstart-step {
    animation: fadeInUp 0.5s ease-out backwards;
}

.quickstart-step:nth-child(1) {
    animation-delay: 0.3s;
}

.quickstart-step:nth-child(2) {
    animation-delay: 0.4s;
}

.quickstart-step:nth-child(3) {
    animation-delay: 0.5s;
}

.quickstart-step:nth-child(4) {
    animation-delay: 0.6s;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 32px 20px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .features-section,
    .quickstart-section {
        padding: 32px 20px;
    }

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

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

    .landing-toolbar {
        padding: 12px 20px;
    }
}

@media (max-width: 480px) {
    .quickstart-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .feature-card {
        padding: 20px;
    }
}