/* Import modern, premium font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: hsl(30, 40%, 45%); /* Tono marrón cálido y terroso, muy zen / meditación */
    --primary-hover: hsl(30, 40%, 35%);
    --bg-dark: hsl(30, 20%, 97%); /* Fondo claro y cálido, tipo crema/arena */
    --bg-card: hsl(0, 0%, 100%); /* Tarjetas en blanco limpio */
    --text-main: hsl(200, 20%, 15%);
    --text-muted: hsl(200, 10%, 45%);
    --border-color: hsl(30, 20%, 90%);
    --accent: hsl(150, 40%, 35%); /* Tono verde oliva zen */
    --accent-hover: hsl(150, 40%, 28%);
    --error: hsl(0, 80%, 50%);
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    /* Fondo radial sutil en color arena y verde zen */
    background-image: 
        radial-gradient(at 0% 0%, hsla(30, 40%, 80%, 0.4) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(150, 40%, 80%, 0.3) 0px, transparent 50%);
}

header {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-main) 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: start;
}

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding-top: 1rem;
    }
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.badge {
    align-self: flex-start;
    background: hsla(30, 40%, 50%, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid hsla(30, 40%, 50%, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    color: hsl(200, 25%, 10%);
}

.hero-text h1 span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text .subtitle {
    color: var(--text-muted);
    font-size: 1.25rem;
    line-height: 1.6;
}

/* Founder Box Styles matching campusmet precios */
.founder-box {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.founder-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.discount-badge {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    background-color: hsla(150, 40%, 35%, 0.1);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
}

.founder-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.founder-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.bullet-icon {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: bold;
    margin-top: 0.1rem;
}

.founder-benefits strong {
    display: block;
    color: var(--text-main);
    margin-bottom: 0.15rem;
    font-weight: 600;
}

.founder-benefits div {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Premium Form Card */
.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.form-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.form-group.full-width {
    grid-column: span 2;
}

@media (max-width: 500px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: span 1;
    }
}

label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
}

input, select {
    background-color: hsl(30, 20%, 99%);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(30, 40%, 45%, 0.15);
}

/* Plan Options */
.plan-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.plan-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--border-color);
    background-color: #fff;
    padding: 1.2rem 1.25rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.plan-label:hover {
    border-color: var(--primary);
    background-color: hsla(30, 40%, 45%, 0.02);
}

.plan-radio {
    display: none;
}

.plan-radio:checked + .plan-label {
    border-color: var(--primary);
    background-color: hsla(30, 40%, 45%, 0.06);
    box-shadow: 0 0 0 1px var(--primary);
}

.plan-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
    max-width: 70%;
}

.plan-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-main);
}

.plan-price-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.3;
}

.plan-price-tag {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 1.25rem;
    margin-bottom: 1.5rem;
}

.checkbox-group input {
    margin-top: 0.25rem;
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.8rem;
    line-height: 1.4;
    cursor: pointer;
    color: var(--text-muted);
}

.btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 1.1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(135, 90, 60, 0.2);
}

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

.general-errors {
    background-color: hsla(0, 80%, 50%, 0.05);
    border: 1px solid hsla(0, 80%, 50%, 0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    color: var(--error);
    font-size: 0.9rem;
}

.general-errors ul {
    margin-left: 1.25rem;
    margin-top: 0.5rem;
}

/* Bottom Features Section */
.bottom-features {
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 5rem 1.5rem;
}

.bottom-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    text-align: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Success Card */
.success-card {
    text-align: center;
    max-width: 600px;
    margin: 4rem auto;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.success-icon {
    background-color: hsla(150, 40%, 35%, 0.1);
    color: var(--accent);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2.5rem;
    border: 2px solid hsla(150, 40%, 35%, 0.2);
}

.success-card h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.success-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.success-details {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    text-align: left;
}

.success-details div {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.success-details div:last-child {
    margin-bottom: 0;
}

.success-details span:first-child {
    color: var(--text-muted);
}

.success-details span:last-child {
    font-weight: 700;
    color: var(--text-main);
}

footer {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    background-color: #fff;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Spinner Loader */
.loader {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin-loader 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin-loader {
    to { transform: rotate(360deg); }
}