@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Crimson+Pro:wght@600;700;800&display=swap');

:root {
    --sunset-red: #E63946;
    --sunset-orange: #F77F00;
    --sunset-warm: #FF8C42;
    --sunset-yellow: #FFB703;
    --text-dark: #1a1a1a;
    --text-medium: #3a3a3a;
    --text-light: #5a5a5a;
    --bg-white: #ffffff;
    --bg-cream: #FFF8F0;
    --bg-light: #FFFAF5;
    --shadow: rgba(230, 57, 70, 0.12);
    --shadow-hover: rgba(230, 57, 70, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px var(--shadow);
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.logo {
    font-family: 'Crimson Pro', serif;
    font-size: 1.875rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-cta {
    font-size: 1rem;
    font-weight: 600;
    color: var(--sunset-red);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-cta:hover {
    color: var(--sunset-orange);
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, #D62828 0%, var(--sunset-red) 100%);
    color: var(--bg-white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--shadow-hover);
}

.cta-button.large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
    font-weight: 700;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 50%, var(--sunset-yellow) 100%);
    padding: 7rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 25% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 75% 70%, rgba(255, 140, 66, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-family: 'Crimson Pro', serif;
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--bg-white);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    line-height: 1.6;
}

.hero-duration {
    font-size: 1.125rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: 'Crimson Pro', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--bg-white);
}

.stat-label {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Content Sections */
.content-section {
    padding: 6rem 0;
    position: relative;
    z-index: 2;
    background: var(--bg-white);
}

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

.content-section h2 {
    font-family: 'Crimson Pro', serif;
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
}

/* Intro Text */
.intro-text {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.lead {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-medium);
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* Thinking Grid */
.thinking-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.thinking-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--shadow);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.thinking-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-hover);
    border-left-color: var(--sunset-orange);
}

.thinking-card h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.thinking-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Approach Section */
.approach {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.approach-item {
    display: flex;
    gap: 2.5rem;
    align-items: flex-start;
}

.approach-number {
    font-family: 'Crimson Pro', serif;
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 100px;
}

.approach-content h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.approach-content p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* AI Section */
.ai-section {
    max-width: 900px;
    margin: 0 auto;
}

.ai-lead {
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    color: var(--text-medium);
    margin-bottom: 3.5rem;
    line-height: 1.5;
}

.ai-answer {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.ai-point {
    display: flex;
    gap: 2rem;
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.ai-point:hover {
    transform: translateX(10px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.ai-icon {
    font-size: 2.5rem;
    color: var(--sunset-orange);
    flex-shrink: 0;
    font-weight: 700;
}

.ai-point strong {
    display: block;
    font-family: 'Crimson Pro', serif;
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.ai-point p {
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
}

.ai-point a {
    color: var(--sunset-red);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.ai-point a:hover {
    color: var(--sunset-orange);
    text-decoration: underline;
}

/* Process Steps */
.process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.process-step {
    text-align: center;
    padding: 2rem;
}

.step-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
}

.process-step h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.process-step p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Teacher Section */
.teacher-section {
    max-width: 800px;
    margin: 0 auto;
}

.teacher-section h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    text-align: center;
}

.teacher-text {
    text-align: left;
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--shadow);
    border-left: 4px solid var(--sunset-orange);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-light);
}

.teacher-links {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1.05rem;
}

.teacher-links a {
    color: var(--sunset-red);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.teacher-links a:hover {
    color: var(--sunset-orange);
    text-decoration: underline;
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.comparison-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.comparison-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px var(--shadow-hover);
}

.comparison-highlight {
    max-width: 600px;
    margin: 3rem auto 0;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 30px var(--shadow-hover);
    border: 3px solid var(--sunset-orange);
}

.comparison-highlight h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
    text-align: center;
}

.comparison-highlight ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-highlight ul li {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1.05rem;
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
}

.comparison-highlight ul li::before {
    content: '→';
    color: var(--sunset-orange);
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.25rem;
}

.comparison-item h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.comparison-item p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
    margin: 0;
}

.comparison-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.comparison-item ul li {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.comparison-item ul li::before {
    content: '→';
    color: var(--sunset-orange);
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.125rem;
}

/* Pricing Section */
.pricing-section {
    background: var(--bg-cream);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 900px;
    margin: 0 auto 3rem;
}

.pricing-card {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 30px;
    box-shadow: 0 8px 40px var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 50px var(--shadow-hover);
}

.pricing-card h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.price {
    margin-bottom: 2.5rem;
}

.price-amount {
    font-family: 'Crimson Pro', serif;
    font-size: 4.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 1.5rem;
    color: var(--text-medium);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-features li {
    padding: 1.25rem 0;
    border-bottom: 1px solid #f0f0f0;
    color: var(--text-medium);
    font-size: 1.05rem;
}

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

.pricing-features li::before {
    content: '→';
    color: var(--sunset-orange);
    font-weight: bold;
    margin-right: 1rem;
    font-size: 1.25rem;
}

.free-trial {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-cream) 100%);
    padding: 2.5rem;
    border-radius: 20px;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.free-trial strong {
    display: block;
    font-family: 'Crimson Pro', serif;
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    margin-top: 2rem;
}

.free-trial strong:first-child {
    margin-top: 0;
}

.free-trial p {
    color: var(--text-medium);
    margin: 0;
    line-height: 1.7;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, var(--sunset-red) 0%, var(--sunset-orange) 50%, var(--sunset-yellow) 100%);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    z-index: 2;
}

.final-cta h2 {
    font-family: 'Crimson Pro', serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--bg-white);
    background: none;
    -webkit-text-fill-color: var(--bg-white);
}

.final-cta p {
    font-size: 1.375rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 3rem;
    font-weight: 400;
    line-height: 1.7;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 3rem;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--bg-light);
    padding: 3rem 0;
    text-align: center;
    position: relative;
    z-index: 2;
}

footer p {
    margin: 0.5rem 0;
    color: rgba(255, 255, 255, 0.7);
}

footer a {
    color: var(--sunset-orange);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    color: var(--sunset-yellow);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .content-section h2 {
        font-size: 2.25rem;
    }

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

    .approach-item {
        flex-direction: column;
        gap: 1.5rem;
    }

    .approach-number {
        font-size: 3rem;
        min-width: auto;
    }

    .ai-lead {
        font-size: 1.375rem;
    }

    .ai-point {
        flex-direction: column;
        gap: 1.5rem;
    }

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

    .final-cta h2 {
        font-size: 2.25rem;
    }

    .final-cta p {
        font-size: 1.125rem;
    }

    .cta-button.large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    nav {
        flex-direction: column;
        gap: 1rem;
    }

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

    .comparison-highlight {
        padding: 2rem;
    }

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

    .pricing-card {
        padding: 2rem;
    }

    .price-amount {
        font-size: 3.5rem;
    }

    .lead {
        font-size: 1.25rem;
    }
}