/* ========================================
   CÍRCULO ZENIT - LANDING PAGE STYLES
   Ultra-Exclusive Minimalist Design
   ======================================== */

/* ==================== VARIABLES ==================== */
:root {
    /* Colors */
    --primary-navy: #0a2342;
    --accent-gold: #c5a059;
    --dark-bg: #0f0f0f;
    --light-text: #e8e8e8;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-medium: #999999;
    --error-red: #d32f2f;
    --success-green: #2e7d32;
    
    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--primary-navy);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

strong {
    font-weight: 600;
    color: var(--primary-navy);
}

/* ==================== UTILITY CLASSES ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.required {
    color: var(--accent-gold);
    font-weight: bold;
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-navy) 0%, #051426 100%);
    background-image: 
        linear-gradient(135deg, rgba(10, 35, 66, 0.65) 0%, rgba(5, 20, 38, 0.75) 100%),
        url('https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(to bottom, 
            transparent 0%, 
            transparent 30%, 
            rgba(255, 255, 255, 0.15) 35%, 
            rgba(255, 255, 255, 0.25) 40%, 
            transparent 50%
        ),
        radial-gradient(circle at center, transparent 0%, rgba(10, 35, 66, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    animation: fadeInUp 1.2s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Logo */
.logo-container {
    margin-bottom: var(--spacing-md);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--white);
    margin: 0;
}

.logo-zenit {
    color: var(--accent-gold);
    display: inline-block;
    position: relative;
}

.logo-underline {
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    margin: var(--spacing-sm) auto;
}

.hero-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--light-text);
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-md);
    color: var(--gray-medium);
    font-weight: 300;
}

/* Badge Exclusive */
.badge-exclusive {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(197, 160, 89, 0.15);
    border: 1px solid var(--accent-gold);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.badge-exclusive i {
    margin-right: var(--spacing-xs);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--accent-gold);
    font-size: 1.5rem;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ==================== BUTTONS ==================== */
.btn-primary,
.btn-secondary,
.btn-submit {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--primary-navy);
    box-shadow: 0 4px 15px rgba(197, 160, 89, 0.3);
}

.btn-primary:hover {
    background: var(--white);
    color: var(--primary-navy);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(197, 160, 89, 0.4);
}

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

.btn-secondary:hover {
    background: var(--accent-gold);
    color: var(--primary-navy);
}

.btn-submit {
    width: 100%;
    background: var(--primary-navy);
    color: var(--white);
    font-size: 1.1rem;
    padding: 1.25rem;
}

.btn-submit:hover {
    background: var(--accent-gold);
    color: var(--primary-navy);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--primary-navy);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-medium);
    font-weight: 300;
}

.decorative-line {
    width: 80px;
    height: 2px;
    background: var(--accent-gold);
    margin: 0 auto var(--spacing-sm);
}

/* ==================== PRESENTACIÓN SECTION ==================== */
.presentacion-section {
    background: var(--white);
}

.presentacion-content {
    max-width: 900px;
    margin: 0 auto;
}

.presentacion-block {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-left: 4px solid var(--accent-gold);
}

.lead-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--primary-navy);
}

/* Investment Model */
.investment-model {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-navy) 0%, #051426 100%);
    border-radius: 8px;
    color: var(--white);
}

.investment-model h3 {
    text-align: center;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
    font-size: 1.8rem;
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.investment-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.investment-item:hover {
    background: rgba(197, 160, 89, 0.1);
    transform: translateY(-5px);
}

.investment-item i {
    font-size: 2.5rem;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.investment-label {
    font-size: 0.9rem;
    color: var(--gray-medium);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.investment-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

/* Founder Block */
.founder-block {
    background: linear-gradient(135deg, rgba(197, 160, 89, 0.1) 0%, rgba(10, 35, 66, 0.05) 100%);
    border-left-color: var(--primary-navy);
}

.founder-info {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.founder-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.founder-text {
    flex: 1;
}

/* Membership Counter */
.membership-counter {
    max-width: 500px;
    margin: var(--spacing-lg) auto 0;
    text-align: center;
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-radius: 8px;
}

.counter-label {
    font-size: 1.1rem;
    color: var(--gray-medium);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.counter-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.counter-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-medium);
    border-radius: 4px;
    overflow: hidden;
}

.counter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-gold), var(--primary-navy));
    border-radius: 4px;
    transition: width 1s ease;
}

/* ==================== CRITERIA SECTION ==================== */
.criteria-section {
    background: var(--gray-light);
}

.criteria-intro {
    text-align: center;
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    color: var(--gray-medium);
}

.criteria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.criteria-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
}

.criteria-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(197, 160, 89, 0.15);
}

.criteria-icon {
    flex-shrink: 0;
    font-size: 1.5rem;
    color: var(--accent-gold);
}

.criteria-text {
    flex: 1;
    line-height: 1.6;
}

.criteria-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.criteria-final {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-md);
}

/* ==================== FORM SECTION ==================== */
.form-section {
    background: var(--white);
}

.form-intro {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(197, 160, 89, 0.1);
    border-left: 4px solid var(--accent-gold);
    text-align: center;
}

.form-intro i {
    color: var(--accent-gold);
    margin-right: var(--spacing-xs);
}

.membership-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--gray-light);
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
}

.form-section-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--accent-gold);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-section-title i {
    color: var(--accent-gold);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--primary-navy);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    border: 2px solid var(--gray-medium);
    border-radius: 4px;
    background: var(--white);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--error-red);
}

.error-message {
    display: none;
    color: var(--error-red);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.form-group.error .error-message {
    display: block;
}

/* Radio Buttons */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--white);
    border: 2px solid var(--gray-medium);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.radio-label:hover {
    border-color: var(--accent-gold);
}

.radio-label input[type="radio"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

.radio-label input[type="radio"]:checked + span {
    font-weight: 600;
    color: var(--accent-gold);
}

/* Checkbox */
.checkbox-group {
    padding: var(--spacing-md);
    background: rgba(197, 160, 89, 0.05);
    border-radius: 4px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
    cursor: pointer;
}

.checkbox-label span {
    flex: 1;
    line-height: 1.6;
}

/* Character Counter */
.char-counter {
    font-size: 0.875rem;
    color: var(--gray-medium);
    margin-top: var(--spacing-xs);
    text-align: right;
}

/* Form Actions */
.form-actions {
    margin-top: var(--spacing-lg);
}

.btn-loading {
    display: none;
}

.form-footer-note {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-medium);
}

.form-footer-note i {
    color: var(--accent-gold);
    margin-right: var(--spacing-xs);
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--primary-navy);
    color: var(--light-text);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo-text {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--white);
}

.footer-underline {
    width: 100px;
    height: 2px;
    background: var(--accent-gold);
    margin: var(--spacing-sm) auto;
}

.footer-contact {
    margin-bottom: var(--spacing-md);
}

.footer-contact p {
    margin-bottom: var(--spacing-xs);
}

.footer-contact a {
    color: var(--accent-gold);
}

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

.footer-links {
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--light-text);
    transition: var(--transition-fast);
}

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

.separator {
    margin: 0 var(--spacing-sm);
    color: var(--gray-medium);
}

.footer-copyright {
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--gray-medium);
}

.footer-disclaimer {
    max-width: 800px;
    margin: var(--spacing-md) auto 0;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: var(--gray-medium);
    line-height: 1.5;
}

/* ==================== ANIMATIONS ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ==================== RESPONSIVE DESIGN ==================== */

/* Tablets */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .investment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .criteria-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .founder-info {
        flex-direction: column;
        text-align: center;
    }
    
    .founder-icon {
        margin: 0 auto;
    }
    
    .radio-group {
        font-size: 0.9rem;
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .hero-section {
        background-attachment: scroll;
        min-height: 100vh;
    }
    
    .logo-text {
        font-size: 2.5rem;
    }
    
    .logo-underline {
        width: 150px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .investment-grid {
        grid-template-columns: 1fr;
    }
    
    .counter-number {
        font-size: 3rem;
    }
    
    .membership-form {
        padding: var(--spacing-md);
    }
    
    .form-section-title {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .separator {
        display: none;
    }
}

/* Touch devices - larger tap targets */
@media (hover: none) and (pointer: coarse) {
    .btn-primary,
    .btn-secondary,
    .btn-submit {
        padding: 1rem 2rem;
        min-height: 48px;
    }
    
    .radio-label,
    .checkbox-label {
        min-height: 48px;
    }
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .hero-section,
    .scroll-indicator,
    .btn-primary,
    .btn-secondary,
    .form-section,
    .footer {
        display: none;
    }
    
    body {
        color: #000;
    }
    
    .presentacion-section,
    .criteria-section {
        page-break-inside: avoid;
    }
}