/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
    /* Colors */
    --color-primary: #1E3A8A;       /* Azul Profundo / Índigo */
    --color-primary-light: #2B4C9F;
    --color-secondary: #849B85;     /* Verde Salvia */
    --color-secondary-light: #A3B8A4;
    --color-background: #F4F1EA;    /* Arena / Beige Claro */
    --color-card-bg: #FFFFFF;
    --color-accent: #C86D51;        /* Terracota */
    --color-accent-hover: #B25C42;
    --color-text: #2D3748;          /* Carbón Suave */
    --color-text-light: #5E6E82;    /* Carbón Suave Muted */
    --color-border: #E2E8F0;
    
    /* Fonts */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(45, 55, 72, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(45, 55, 72, 0.08), 0 4px 6px -2px rgba(45, 55, 72, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(45, 55, 72, 0.1), 0 10px 10px -5px rgba(45, 55, 72, 0.04);
    
    /* Layout & Animation */
    --container-width: 1200px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    --border-radius: 12px;
}

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

html {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.25;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.section {
    padding: 100px 0;
}

.section-alt {
    background-color: #ECE8DE; /* Slightly darker sand for section alternating */
    padding: 100px 0;
}

.text-center {
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(132, 155, 133, 0.15); /* Light Sage background */
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 20px;
    font-family: var(--font-body);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto 60px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    text-align: center;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(200, 109, 81, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(200, 109, 81, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: #FFFFFF;
    transform: translateY(-2px);
}

.btn-outline-white {
    background-color: transparent;
    color: var(--color-background);
    border-color: var(--color-background);
}

.btn-outline-white:hover {
    background-color: var(--color-background);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(244, 241, 234, 0.85); /* Glassmorphism background */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(45, 55, 72, 0.05);
    transition: var(--transition-smooth);
}

.header.scrolled {
    background-color: rgba(244, 241, 234, 0.95);
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

.header.scrolled .navbar {
    padding: 15px 0;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-top: -3px;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 40px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
    background-color: var(--color-primary);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1100;
}

.hamburger-box {
    width: 24px;
    height: 18px;
    display: inline-block;
    position: relative;
}

.hamburger-inner {
    display: block;
    top: 50%;
    margin-top: -1px;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 4px;
    position: absolute;
    transition: transform 0.15s ease, background-color 0.15s ease;
}

.hamburger-inner::before, .hamburger-inner::after {
    content: "";
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 4px;
    position: absolute;
    transition: var(--transition-smooth);
}

.hamburger-inner::before {
    top: -8px;
}

.hamburger-inner::after {
    bottom: -8px;
}

/* Hamburger Active State */
.nav-toggle.active .hamburger-inner {
    background-color: transparent;
}

.nav-toggle.active .hamburger-inner::before {
    transform: translateY(8px) rotate(45deg);
}

.nav-toggle.active .hamburger-inner::after {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 80% 20%, rgba(132, 155, 133, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(30, 58, 138, 0.05) 0%, transparent 40%);
    padding-top: 100px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 25px;
    color: var(--color-primary);
}

.hero-title span {
    font-family: var(--font-body);
    font-weight: 300;
    display: block;
    font-size: 1.8rem;
    color: var(--color-secondary);
    margin-bottom: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-image-wrapper {
    position: relative;
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-image-container {
    width: 100%;
    aspect-ratio: 4/5;
    border-radius: 160px 40px 160px 40px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 8px solid #FFFFFF;
    background-color: var(--color-secondary-light);
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.hero-image-container:hover img {
    transform: scale(1.05);
}

.hero-deco-ring {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-secondary);
    border-radius: 160px 40px 160px 40px;
    z-index: -1;
    pointer-events: none;
}

/* ==========================================================================
   ABOUT / SOBRE MÍ SECTION
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
}

.about-experience {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    max-width: 220px;
}

.exp-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-secondary-light);
    margin-bottom: 5px;
}

.exp-text {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-signature {
    margin-top: 40px;
}

.signature-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.signature-title {
    font-size: 0.9rem;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ==========================================================================
   METHODOLOGY / APPROACH SECTION
   ========================================================================== */
.method-intro {
    background-color: var(--color-primary);
    color: var(--color-background);
    border-radius: 24px;
    padding: 60px;
    margin-bottom: 60px;
    box-shadow: var(--shadow-lg);
}

.method-intro h3 {
    color: #FFFFFF;
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.method-intro p {
    font-size: 1.15rem;
    max-width: 800px;
    opacity: 0.9;
}

.method-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.method-card {
    background-color: var(--color-card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border-top: 4px solid var(--color-secondary);
}

.method-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.method-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(132, 155, 133, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-secondary);
    font-size: 1.5rem;
    margin-bottom: 25px;
}

.method-card h4 {
    font-size: 1.35rem;
    margin-bottom: 15px;
}

.method-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   COURSES & SERVICES SECTION
   ========================================================================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.course-card {
    background-color: var(--color-card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.course-img-wrapper {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.course-card:hover .course-img {
    transform: scale(1.05);
}

.course-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.course-info {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-title {
    font-size: 1.35rem;
    margin-bottom: 15px;
    line-height: 1.3;
}

.course-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 25px;
    flex-grow: 1;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
    margin-top: auto;
}

.course-price {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.course-link {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition-fast);
}

.course-link:hover {
    color: var(--color-accent-hover);
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 60px;
}

.contact-info-panel {
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 50px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
}

.contact-info-top h3 {
    color: #FFFFFF;
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-info-top p {
    color: var(--color-secondary-light);
    margin-bottom: 40px;
}

.contact-details {
    list-style: none;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
    color: var(--color-secondary-light);
}

.contact-text h4 {
    color: #FFFFFF;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    font-family: var(--font-body);
}

.contact-text p, .contact-text a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
}

.contact-text a:hover {
    color: #FFFFFF;
}

.contact-socials {
    display: flex;
    gap: 15px;
    margin-top: 40px;
}

.social-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition-fast);
    color: #FFFFFF;
}

.social-circle:hover {
    background-color: #FFFFFF;
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--color-card-bg);
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

.form-group {
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-control {
    padding: 14px 20px;
    border: 1px solid var(--color-border);
    background-color: #F8FAFC;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--color-text);
    transition: var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-secondary);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(132, 155, 133, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(132, 155, 133, 0.15);
    color: var(--color-primary);
    border: 1px solid var(--color-secondary);
}

.form-status.error {
    display: block;
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #F87171;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--color-primary);
    color: #FFFFFF;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 50px;
}

.footer-brand .logo-main {
    color: #FFFFFF;
}

.footer-brand .logo-sub {
    color: var(--color-secondary-light);
}

.footer-about {
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-title {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 8px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: #FFFFFF;
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* ==========================================================================
   MOBILE NAVIGATION MENU DRAWER
   ========================================================================== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-background);
    z-index: 1050;
    padding: 100px 40px 40px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 40px;
    transition: var(--transition-smooth);
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(30, 58, 138, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1025;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.mobile-menu-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.mobile-nav-link:hover {
    color: var(--color-accent);
}

.mobile-menu-info {
    margin-top: auto;
    border-top: 1px solid var(--color-border);
    padding-top: 30px;
}

.mobile-menu-info p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 15px;
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   MEDIA QUERIES (RESPONSIVE DESIGN)
   ========================================================================== */

/* Large Tablets and Laptops */
@media (max-width: 1024px) {
    .section, .section-alt {
        padding: 80px 0;
    }
    .hero-title {
        font-size: 3rem;
    }
    .hero-grid {
        gap: 40px;
    }
    .about-grid {
        gap: 50px;
    }
    .method-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Mobile Devices & Small Tablets */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-title span {
        font-size: 1.4rem;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .hero-image-wrapper {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-wrapper {
        max-width: 400px;
        margin: 0 auto 30px;
    }
    
    .about-experience {
        right: -15px;
        bottom: -15px;
        padding: 20px;
    }
    
    .method-intro {
        padding: 40px 20px;
    }
    
    .method-intro h3 {
        font-size: 1.8rem;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 35px;
        max-width: 450px;
        margin: 0 auto;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.1rem;
    }
    .hero-btns {
        flex-direction: column;
        gap: 12px;
    }
    .hero-btns .btn {
        width: 100%;
    }
    .contact-info-panel {
        padding: 30px 20px;
    }
    .contact-form-wrapper {
        padding: 30px 20px;
    }
    .section-title {
        font-size: 2rem;
    }
}