/**
 * LeanPivot Landing Pages - Unified Design System
 * Aligned with /pages marketing pages and /lean-startup-guide
 *
 * Color Palette: Teal primary, Orange accent, Slate neutrals
 */

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */
:root {
    /* Primary - Teal (Brand Color) */
    --lp-primary: #26a69a;
    --lp-primary-dark: #00897b;
    --lp-primary-darker: #00695c;
    --lp-primary-light: #4db6ac;
    --lp-primary-rgb: 38, 166, 154;

    /* Accent - Orange (CTAs, highlights) */
    --lp-accent: #ff9800;
    --lp-accent-dark: #f57c00;
    --lp-accent-rgb: 255, 152, 0;

    /* Neutrals - Slate */
    --lp-slate-900: #0f172a;
    --lp-slate-800: #1e293b;
    --lp-slate-700: #334155;
    --lp-slate-600: #475569;
    --lp-slate-500: #64748b;
    --lp-slate-400: #94a3b8;
    --lp-slate-300: #cbd5e1;
    --lp-slate-200: #e2e8f0;
    --lp-slate-100: #f1f5f9;
    --lp-slate-50: #f8fafc;

    /* Text Colors */
    --lp-text-primary: #1f2937;
    --lp-text-secondary: #6b7280;
    --lp-text-muted: #9ca3af;
    --lp-text-light: #d1d5db;
    --lp-text-white: #ffffff;

    /* Backgrounds */
    --lp-bg-white: #ffffff;
    --lp-bg-light: #f8fafc;
    --lp-bg-alt: #f1f5f9;

    /* Gradients */
    --lp-gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 25%, #334155 50%, #475569 75%, #64748b 100%);
    --lp-gradient-cta: linear-gradient(135deg, #26a69a 0%, #00897b 100%);
    --lp-gradient-cta-hover: linear-gradient(135deg, #00897b 0%, #00695c 100%);
    --lp-gradient-accent: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    --lp-gradient-card: linear-gradient(135deg, #f8fafc, #f1f5f9);
    --lp-gradient-badge: linear-gradient(135deg, #26a69a 0%, #00897b 100%);

    /* Shadows */
    --lp-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --lp-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --lp-shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.12);
    --lp-shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.15);
    --lp-shadow-teal: 0 4px 12px rgba(38, 166, 154, 0.25);
    --lp-shadow-teal-lg: 0 8px 25px rgba(38, 166, 154, 0.35);

    /* Border Radius */
    --lp-radius-sm: 4px;
    --lp-radius-base: 8px;
    --lp-radius-md: 12px;
    --lp-radius-lg: 16px;
    --lp-radius-xl: 24px;
    --lp-radius-full: 9999px;

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

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

    /* Transitions */
    --lp-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --lp-transition-base: 300ms cubic-bezier(0.25, 0.8, 0.25, 1);
    --lp-transition-slow: 500ms cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ============================================
   BASE STYLES
   ============================================ */
.lp-page {
    font-family: var(--lp-font-family);
    color: var(--lp-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.lp-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--lp-spacing-4);
}

/* ============================================
   HERO SECTION
   ============================================ */
.lp-hero {
    background: var(--lp-gradient-hero);
    position: relative;
    padding: var(--lp-spacing-16) 0;
    overflow: hidden;
}

.lp-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(var(--lp-primary-rgb), 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(var(--lp-accent-rgb), 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.lp-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.lp-hero-light {
    background: var(--lp-bg-light);
    padding: var(--lp-spacing-12) 0;
}

.lp-hero-light .lp-hero-content {
    color: var(--lp-text-primary);
}

/* ============================================
   BADGES
   ============================================ */
.lp-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--lp-gradient-badge);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--lp-radius-full);
    font-size: var(--lp-text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--lp-spacing-4);
    box-shadow: var(--lp-shadow-teal);
}

.lp-badge i {
    font-size: 0.9rem;
}

.lp-badge-accent {
    background: var(--lp-gradient-accent);
    box-shadow: 0 4px 12px rgba(var(--lp-accent-rgb), 0.3);
}

.lp-badge-outline {
    background: transparent;
    border: 2px solid var(--lp-primary);
    color: var(--lp-primary);
    box-shadow: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
.lp-title {
    font-size: var(--lp-text-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--lp-spacing-4);
    letter-spacing: -0.02em;
}

.lp-hero .lp-title {
    color: white;
}

.lp-title-lg {
    font-size: var(--lp-text-5xl);
}

.lp-subtitle {
    font-size: var(--lp-text-xl);
    color: var(--lp-text-secondary);
    margin-bottom: var(--lp-spacing-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.lp-hero .lp-subtitle {
    color: var(--lp-slate-300);
}

.lp-section-title {
    font-size: var(--lp-text-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--lp-spacing-3);
    color: var(--lp-text-primary);
}

.lp-section-subtitle {
    font-size: var(--lp-text-lg);
    color: var(--lp-text-secondary);
    text-align: center;
    margin-bottom: var(--lp-spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   BUTTONS
   ============================================ */
.lp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: var(--lp-text-base);
    font-weight: 600;
    border-radius: var(--lp-radius-base);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--lp-transition-base);
    position: relative;
    overflow: hidden;
}

.lp-btn-primary {
    background: var(--lp-gradient-cta);
    color: white;
    box-shadow: var(--lp-shadow-teal);
}

.lp-btn-primary:hover {
    background: var(--lp-gradient-cta-hover);
    transform: translateY(-2px);
    box-shadow: var(--lp-shadow-teal-lg);
    color: white;
    text-decoration: none;
}

.lp-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.lp-btn-primary:hover::before {
    left: 100%;
}

.lp-btn-secondary {
    background: transparent;
    color: var(--lp-primary);
    border: 2px solid var(--lp-primary);
}

.lp-btn-secondary:hover {
    background: var(--lp-primary);
    color: white;
    text-decoration: none;
}

.lp-btn-white {
    background: white;
    color: var(--lp-primary);
    border: 2px solid white;
}

.lp-btn-white:hover {
    background: transparent;
    color: white;
    text-decoration: none;
}

.lp-btn-lg {
    padding: 1rem 2.5rem;
    font-size: var(--lp-text-lg);
    border-radius: var(--lp-radius-md);
}

.lp-btn-block {
    display: flex;
    width: 100%;
}

/* ============================================
   FORMS
   ============================================ */
.lp-form-box {
    background: white;
    padding: var(--lp-spacing-8);
    border-radius: var(--lp-radius-lg);
    box-shadow: var(--lp-shadow-lg);
    max-width: 450px;
    margin: 0 auto;
}

.lp-form-box-dark {
    background: var(--lp-slate-800);
    border: 1px solid var(--lp-slate-700);
}

.lp-form-title {
    font-size: var(--lp-text-xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--lp-spacing-6);
    color: var(--lp-text-primary);
}

.lp-form-box-dark .lp-form-title {
    color: white;
}

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

.lp-input {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--lp-text-base);
    font-family: var(--lp-font-family);
    border: 2px solid var(--lp-slate-200);
    border-radius: var(--lp-radius-base);
    background: white;
    color: var(--lp-text-primary);
    transition: all var(--lp-transition-fast);
}

.lp-input:focus {
    outline: none;
    border-color: var(--lp-primary);
    box-shadow: 0 0 0 3px rgba(var(--lp-primary-rgb), 0.1);
}

.lp-input::placeholder {
    color: var(--lp-text-muted);
}

.lp-form-box-dark .lp-input {
    background: var(--lp-slate-700);
    border-color: var(--lp-slate-600);
    color: white;
}

.lp-form-box-dark .lp-input::placeholder {
    color: var(--lp-slate-400);
}

.lp-form-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--lp-spacing-4);
    font-size: var(--lp-text-sm);
    color: var(--lp-text-muted);
}

.lp-form-hint i {
    color: var(--lp-primary);
}

/* ============================================
   FEATURE CARDS
   ============================================ */
.lp-features {
    padding: var(--lp-spacing-16) 0;
    background: var(--lp-bg-light);
}

.lp-features-white {
    background: white;
}

.lp-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--lp-spacing-6);
}

.lp-feature-card {
    background: white;
    padding: var(--lp-spacing-6);
    border-radius: var(--lp-radius-lg);
    box-shadow: var(--lp-shadow-md);
    border: 1px solid var(--lp-slate-200);
    transition: all var(--lp-transition-base);
}

.lp-feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--lp-shadow-lg);
    border-color: var(--lp-slate-300);
}

.lp-feature-icon {
    width: 56px;
    height: 56px;
    background: var(--lp-gradient-cta);
    border-radius: var(--lp-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--lp-spacing-4);
    box-shadow: var(--lp-shadow-teal);
}

.lp-feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.lp-feature-icon-accent {
    background: var(--lp-gradient-accent);
    box-shadow: 0 4px 12px rgba(var(--lp-accent-rgb), 0.3);
}

.lp-feature-title {
    font-size: var(--lp-text-lg);
    font-weight: 600;
    margin-bottom: var(--lp-spacing-2);
    color: var(--lp-text-primary);
}

.lp-feature-description {
    font-size: var(--lp-text-base);
    color: var(--lp-text-secondary);
    line-height: 1.6;
}

/* Feature list style (for lists in hero) */
.lp-feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--lp-spacing-3);
    text-align: left;
    max-width: 500px;
    margin: var(--lp-spacing-6) auto;
}

.lp-feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--lp-spacing-3);
    padding: var(--lp-spacing-3) var(--lp-spacing-4);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--lp-radius-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lp-hero-light .lp-feature-item {
    background: white;
    border-color: var(--lp-slate-200);
}

.lp-feature-item i {
    color: var(--lp-primary-light);
    font-size: 1.25rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.lp-hero-light .lp-feature-item i {
    color: var(--lp-primary);
}

.lp-feature-item-content h4 {
    font-size: var(--lp-text-base);
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white;
}

.lp-hero-light .lp-feature-item-content h4 {
    color: var(--lp-text-primary);
}

.lp-feature-item-content p {
    font-size: var(--lp-text-sm);
    color: var(--lp-slate-300);
    margin: 0;
}

.lp-hero-light .lp-feature-item-content p {
    color: var(--lp-text-secondary);
}

/* ============================================
   SECTIONS
   ============================================ */
.lp-section {
    padding: var(--lp-spacing-16) 0;
}

.lp-section-light {
    background: var(--lp-bg-light);
}

.lp-section-white {
    background: white;
}

.lp-section-dark {
    background: var(--lp-gradient-hero);
    color: white;
}

.lp-section-dark .lp-section-title {
    color: white;
}

.lp-section-dark .lp-section-subtitle {
    color: var(--lp-slate-300);
}

/* ============================================
   SPLIT LAYOUT
   ============================================ */
.lp-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--lp-spacing-12);
    align-items: center;
}

.lp-split-content {
    text-align: left;
}

.lp-split-image img {
    width: 100%;
    border-radius: var(--lp-radius-lg);
    box-shadow: var(--lp-shadow-lg);
}

.lp-split-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--lp-gradient-card);
    border-radius: var(--lp-radius-lg);
    border: 2px dashed var(--lp-slate-300);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--lp-text-muted);
}

.lp-split-image-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--lp-spacing-2);
    color: var(--lp-slate-400);
}

/* ============================================
   CTA SECTION
   ============================================ */
.lp-cta {
    background: var(--lp-gradient-hero);
    padding: var(--lp-spacing-16) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.lp-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(var(--lp-primary-rgb), 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(var(--lp-accent-rgb), 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.lp-cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.lp-cta .lp-title {
    color: white;
}

.lp-cta .lp-subtitle {
    color: var(--lp-slate-300);
}

.lp-cta-buttons {
    display: flex;
    gap: var(--lp-spacing-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   SUCCESS MESSAGE
   ============================================ */
.lp-success {
    text-align: center;
    padding: var(--lp-spacing-8);
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-radius: var(--lp-radius-lg);
    border: 1px solid #86efac;
}

.lp-success-icon {
    font-size: 3rem;
    color: #22c55e;
    margin-bottom: var(--lp-spacing-4);
}

.lp-success-title {
    font-size: var(--lp-text-xl);
    font-weight: 700;
    color: #166534;
    margin-bottom: var(--lp-spacing-2);
}

.lp-success-message {
    color: #15803d;
}

/* ============================================
   FOOTER
   ============================================ */
.lp-footer {
    padding: var(--lp-spacing-8) 0;
    text-align: center;
    background: var(--lp-bg-light);
    border-top: 1px solid var(--lp-slate-200);
}

.lp-footer-text {
    font-size: var(--lp-text-sm);
    color: var(--lp-text-muted);
}

.lp-footer-links {
    display: flex;
    justify-content: center;
    gap: var(--lp-spacing-6);
    margin-top: var(--lp-spacing-4);
}

.lp-footer-links a {
    color: var(--lp-text-secondary);
    text-decoration: none;
    font-size: var(--lp-text-sm);
    transition: color var(--lp-transition-fast);
}

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

/* ============================================
   MINIMAL LAYOUT
   ============================================ */
.lp-minimal {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--lp-gradient-hero);
    padding: var(--lp-spacing-8);
    position: relative;
}

.lp-minimal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(var(--lp-primary-rgb), 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(var(--lp-accent-rgb), 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.lp-minimal-box,
.lp-minimal-card {
    background: white;
    padding: var(--lp-spacing-8);
    border-radius: var(--lp-radius-xl);
    box-shadow: var(--lp-shadow-xl);
    max-width: 480px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.lp-minimal-logo {
    margin-bottom: var(--lp-spacing-6);
}

.lp-minimal-logo img {
    max-height: 48px;
}

/* ============================================
   HERO LAYOUT VARIANTS
   ============================================ */
.lp-hero-dark {
    background: var(--lp-gradient-hero);
}

.lp-hero-full {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--lp-spacing-16) 0;
}

.lp-hero-full .lp-container {
    text-align: center;
}

/* Light-colored elements for dark backgrounds */
.lp-badge-light {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: none;
}

.lp-title-light {
    color: white;
}

.lp-subtitle-light {
    color: var(--lp-slate-300);
}

.lp-success-dark {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.lp-success-dark .lp-success-icon {
    color: #4ade80;
}

.lp-success-dark .lp-success-title {
    color: white;
}

.lp-success-dark .lp-success-message {
    color: var(--lp-slate-300);
}

/* ============================================
   LOGO STYLES
   ============================================ */
.lp-logo {
    margin-bottom: var(--lp-spacing-6);
}

.lp-logo img {
    max-height: 48px;
    max-width: 200px;
}

.lp-logo-centered {
    text-align: center;
}

.lp-logo-text {
    font-size: var(--lp-text-2xl);
    font-weight: 700;
    color: var(--lp-primary);
}

/* ============================================
   CENTERED VARIANTS
   ============================================ */
.lp-title-centered {
    text-align: center;
}

.lp-subtitle-centered {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.lp-form-box-centered {
    margin: 0 auto;
}

.lp-form-title-centered {
    text-align: center;
}

.lp-form-hint-centered {
    justify-content: center;
}

.lp-form-minimal {
    margin-top: var(--lp-spacing-6);
}

/* ============================================
   FOOTER VARIANTS
   ============================================ */
.lp-footer-minimal {
    background: transparent;
    border-top: none;
}

.lp-footer-minimal .lp-footer-text {
    color: var(--lp-slate-400);
}

/* ============================================
   FORM ERROR STATES
   ============================================ */
.lp-error {
    color: #ef4444;
    font-size: var(--lp-text-sm);
    margin-top: var(--lp-spacing-2);
}

.lp-input-error {
    border-color: #ef4444 !important;
}

.lp-input-error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes lp-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes lp-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(var(--lp-primary-rgb), 0.4); }
    50% { box-shadow: 0 0 0 15px rgba(var(--lp-primary-rgb), 0); }
}

.lp-animate-float {
    animation: lp-float 3s ease-in-out infinite;
}

.lp-animate-pulse {
    animation: lp-pulse 2s ease-in-out infinite;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991px) {
    .lp-split {
        grid-template-columns: 1fr;
        gap: var(--lp-spacing-8);
    }

    .lp-split-content {
        text-align: center;
    }

    .lp-split-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --lp-text-4xl: 1.875rem;
        --lp-text-5xl: 2.25rem;
    }

    .lp-hero {
        padding: var(--lp-spacing-12) 0;
    }

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

    .lp-form-box {
        padding: var(--lp-spacing-6);
    }

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

    .lp-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .lp-btn-lg {
        width: 100%;
        max-width: 320px;
    }
}

@media (max-width: 576px) {
    .lp-container {
        padding: 0 var(--lp-spacing-3);
    }

    .lp-title {
        font-size: var(--lp-text-3xl);
    }

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

    .lp-badge {
        font-size: var(--lp-text-xs);
        padding: 0.4rem 1rem;
    }
}