/* ===========================
   Variables y Reset
   =========================== */
:root {
    --primary-color: #2c84c3;
    --primary-dark: #2370a8;
    --secondary-color: #c02582;
    --accent-color: #e03896;
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --text-muted: #718096;
    --background: #ffffff;
    --background-light: #f7fafc;
    --background-dark: #edf2f7;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #2c84c3 0%, #c02582 100%);
    --gradient-accent: linear-gradient(135deg, #c02582 0%, #e03896 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    line-height: 1.2;
}

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

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

/* ===========================
   Utilidades
   =========================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-description {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   Botones
   =========================== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-large {
    padding: 16px 40px;
    font-size: 18px;
}

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

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

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

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

.btn-white {
    background: white;
    color: var(--primary-color);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* ===========================
   Navegación
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    z-index: 1000;
    box-shadow: none;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
}

.logo-img {
    height: 50px;
    width: auto;
    background: white;
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    color: white;
    transition: var(--transition);
}

.navbar.scrolled .logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 35px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: white;
    transition: var(--transition);
}

.nav-links a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.navbar.scrolled .nav-links a {
    color: var(--text-dark);
}

.navbar.scrolled .nav-links a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 3px;
    transition: var(--transition);
}

.navbar.scrolled .menu-toggle span {
    background: var(--text-dark);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.float-item {
    position: absolute;
    font-size: 40px;
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.float-item.item-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.float-item.item-2 {
    top: 60%;
    left: 80%;
    animation-delay: 2s;
}

.float-item.item-3 {
    top: 30%;
    right: 15%;
    animation-delay: 4s;
}

.float-item.item-4 {
    bottom: 20%;
    left: 20%;
    animation-delay: 6s;
}

.float-item.item-5 {
    bottom: 40%;
    right: 30%;
    animation-delay: 8s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(10deg);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 64px;
    margin-bottom: 25px;
    animation: fadeInUp 1s ease;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(135deg, #ffffff 0%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    line-height: 1.8;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-stats {
    display: flex;
    gap: 60px;
    justify-content: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s ease 0.6s backwards;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    font-size: 14px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.scroll-arrow {
    font-size: 24px;
}

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

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

/* ===========================
   Cómo Funciona - Paso a Paso
   =========================== */
.how-it-works {
    padding: 100px 0;
    background: var(--background-light);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.step-card {
    position: relative;
    padding: 40px 25px;
    background: white;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--border-color);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-icon {
    font-size: 48px;
    margin: 20px 0;
}

.step-title {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.step-description {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===========================
   Impacto Ambiental
   =========================== */
.environmental-impact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    position: relative;
    overflow: hidden;
}

.environmental-impact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.environmental-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.environmental-text {
    position: relative;
    z-index: 1;
}

.environmental-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin: 40px 0;
}

.env-stat-item {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: white;
    border-radius: 15px;
    border: 2px solid rgba(34, 197, 94, 0.2);
    transition: var(--transition);
}

.env-stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.4);
}

.env-stat-icon {
    font-size: 36px;
    line-height: 1;
}

.env-stat-content h4 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 5px;
    font-weight: 600;
}

.env-stat-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

.environmental-highlight {
    display: flex;
    gap: 15px;
    padding: 25px;
    background: white;
    border-radius: 15px;
    border-left: 4px solid #22c55e;
    margin-top: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.environmental-highlight i {
    font-size: 24px;
    color: #22c55e;
    flex-shrink: 0;
    margin-top: 2px;
}

.environmental-highlight p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

.environmental-highlight strong {
    color: var(--text-dark);
    font-weight: 600;
}

.environmental-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.environmental-circle {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(34, 197, 94, 0.3);
    animation: float 6s ease-in-out infinite;
    position: relative;
}

.environmental-circle::before {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    border: 3px solid rgba(34, 197, 94, 0.2);
    animation: pulse 3s ease-in-out infinite;
}

.environmental-circle i {
    font-size: 120px;
    color: white;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

/* ===========================
   Características
   =========================== */
.features {
    padding: 100px 0;
    background: var(--background);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 40px 30px;
    background: white;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===========================
   Galería
   =========================== */
.gallery {
    padding: 100px 0;
    background: var(--background-light);
}

.gallery-filter {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    justify-items: center;
}

.gallery-item {
    opacity: 1;
    transition: var(--transition);
    width: 100%;
    max-width: 300px;
}

.gallery-item.hidden {
    display: none;
}

.gallery-image {
    position: relative;
    height: 500px;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-image:hover {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    color: white;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-image:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 22px;
    margin-bottom: 5px;
}

.gallery-overlay p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 10px;
}

.plan-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 8px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.preview-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.preview-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.preview-btn i {
    font-size: 12px;
}

.loading-spinner {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ===========================
   Testimonios
   =========================== */
.testimonials {
    padding: 100px 0;
    background: var(--background);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.testimonial-card {
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.testimonial-rating {
    font-size: 20px;
    margin-bottom: 20px;
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 25px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 20px;
}

.author-name {
    font-weight: 600;
    color: var(--text-dark);
}

.author-event {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===========================
   Precios
   =========================== */
.pricing {
    padding: 100px 0;
    background: var(--background-light);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: 30px 20px;
    background: white;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

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

.pricing-card.featured {
    background: var(--gradient-primary);
    color: white;
    border: none;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 25px;
    background: var(--gradient-accent);
    color: white;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.pricing-card.featured .pricing-header {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.plan-name {
    font-size: 24px;
    margin-bottom: 20px;
}

.plan-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 5px;
}

.price-currency {
    font-size: 24px;
    font-weight: 600;
}

.price-amount {
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
}

.price-period {
    font-size: 18px;
    color: var(--text-muted);
    align-self: flex-end;
    margin-bottom: 8px;
}

.pricing-card.featured .price-period {
    color: rgba(255, 255, 255, 0.8);
}

.plan-features {
    list-style: none;
    margin-bottom: 25px;
}

.plan-features li {
    padding: 6px 0;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.4;
}

.pricing-card.featured .plan-features li {
    color: rgba(255, 255, 255, 0.95);
}

/* ===========================
   CTA Section
   =========================== */
.cta {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 48px;
    margin-bottom: 20px;
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   Contacto
   =========================== */
.contact {
    padding: 100px 0;
    background: var(--background);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-title {
    font-size: 42px;
    margin-bottom: 20px;
}

.contact-description {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--background-light);
    border-radius: 15px;
}

.contact-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
}

.contact-form {
    background: var(--background-light);
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* ===========================
   Footer
   =========================== */
.footer {
    padding: 80px 0 30px;
    background: var(--text-dark);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo .logo-img {
    height: 45px;
    width: auto;
    background: white;
    padding: 8px 16px;
    border-radius: 8px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-link {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 14px;
    transition: var(--transition);
}

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

.footer-title {
    font-size: 18px;
    margin-bottom: 20px;
    font-family: 'Poppins', sans-serif;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ===========================
   FAQ Section - Premium UI/UX
   =========================== */
.ti-section {
    padding: 120px 0;
    background: var(--background);
    position: relative;
    overflow: hidden;
}

.ti-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(44, 132, 195, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.ti-section::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(192, 37, 130, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.bg-gradient-1 {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e8f2f7 100%);
}

.ti-section-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
    z-index: 1;
}

.ti-section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: white;
    background: var(--gradient-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    padding: 8px 24px;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(44, 132, 195, 0.3);
    animation: tagFloat 3s ease-in-out infinite;
}

@keyframes tagFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.ti-section-title {
    font-size: 48px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-family: 'Playfair Display', serif;
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ti-section-subtitle {
    font-size: 19px;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

.ti-faq-container {
    max-width: 950px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: relative;
    z-index: 1;
}

.ti-faq-item {
    background: white;
    border-radius: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
}

.ti-faq-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: top;
}

.ti-faq-item:hover {
    box-shadow: 0 8px 30px rgba(44, 132, 195, 0.15);
    transform: translateY(-2px);
    border-color: rgba(44, 132, 195, 0.2);
}

.ti-faq-item.active {
    box-shadow: 0 12px 40px rgba(44, 132, 195, 0.2);
    border-color: var(--primary-color);
}

.ti-faq-item.active::before {
    transform: scaleY(1);
}

.ti-faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
    position: relative;
}

.ti-faq-question:hover {
    background: linear-gradient(90deg, rgba(44, 132, 195, 0.03) 0%, transparent 100%);
}

.ti-faq-item.active .ti-faq-question {
    background: linear-gradient(90deg, rgba(44, 132, 195, 0.05) 0%, transparent 100%);
    padding-bottom: 20px;
}

.ti-faq-question span {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    flex: 1;
    padding-right: 24px;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.ti-faq-item.active .ti-faq-question span {
    color: var(--primary-color);
}

.ti-faq-question i {
    font-size: 16px;
    color: var(--primary-color);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(44, 132, 195, 0.1) 0%, rgba(192, 37, 130, 0.1) 100%);
    border-radius: 50%;
}

.ti-faq-item:hover .ti-faq-question i {
    background: linear-gradient(135deg, rgba(44, 132, 195, 0.15) 0%, rgba(192, 37, 130, 0.15) 100%);
    transform: scale(1.1);
}

.ti-faq-item.active .ti-faq-question i {
    transform: rotate(180deg) scale(1.1);
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(44, 132, 195, 0.3);
}

.ti-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease;
    opacity: 0;
}

.ti-faq-item.active .ti-faq-answer {
    max-height: 600px;
    padding: 8px 32px 28px 32px;
    opacity: 1;
}

.ti-faq-answer p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-light);
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, rgba(44, 132, 195, 0.02) 0%, rgba(192, 37, 130, 0.02) 100%);
    border-radius: 12px;
    border-left: 3px solid rgba(44, 132, 195, 0.3);
    animation: fadeInAnswer 0.5s ease forwards;
}

@keyframes fadeInAnswer {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 968px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        padding: 30px;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .section-title {
        font-size: 36px;
    }

    .ti-section-title {
        font-size: 38px;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .ti-section {
        padding: 80px 0;
    }

    .ti-faq-container {
        padding: 0 15px;
        gap: 15px;
    }

    .ti-faq-question {
        padding: 22px 24px;
    }

    .ti-faq-question span {
        font-size: 17px;
    }

    .ti-faq-item.active .ti-faq-answer {
        padding: 8px 24px 24px 24px;
    }

    .ti-faq-answer p {
        padding: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

    .environmental-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .environmental-stats {
        grid-template-columns: 1fr;
    }

    .environmental-circle {
        width: 250px;
        height: 250px;
    }

    .environmental-circle i {
        font-size: 100px;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }

    .ti-section-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-description {
        font-size: 16px;
    }

    .ti-section {
        padding: 60px 0;
    }

    .ti-section-subtitle {
        font-size: 17px;
    }

    .ti-section-header {
        margin-bottom: 50px;
    }

    .ti-faq-container {
        gap: 12px;
    }

    .ti-faq-question {
        padding: 20px 18px;
    }

    .ti-faq-question span {
        font-size: 16px;
        padding-right: 16px;
    }

    .ti-faq-question i {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }

    .ti-faq-answer p {
        font-size: 15px;
        padding: 14px;
        line-height: 1.8;
    }

    .ti-faq-item.active .ti-faq-answer {
        padding: 8px 18px 20px 18px;
    }

    .ti-faq-item.active .ti-faq-question {
        padding-bottom: 16px;
    }
    
    .features-grid,
    .gallery-grid,
    .testimonials-grid,
    .pricing-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .cta-title {
        font-size: 32px;
    }

    .environmental-circle {
        width: 200px;
        height: 200px;
    }

    .environmental-circle i {
        font-size: 80px;
    }

    .environmental-visual {
        margin-top: 20px;
    }
}