/* ========== MODERN DESIGN SYSTEM ========== */
:root {
    --header-height: 80px;

    /* Clean Color Palette - Airbnb/TripAdvisor Inspired */
    --primary-color: #00A699;
    --primary-dark: #008489;
    --primary-light: #4ECDC4;
    --secondary-color: #FF5A5F;
    --accent-color: #FFB400;
    --success-color: #00D97E;
    --dark: #222222;
    --dark-light: #484848;
    --text-color: #222222;
    --text-light: #717171;
    --text-lighter: #B0B0B0;
    --white: #FFFFFF;
    --bg-gray: #F7F7F7;
    --border-color: #DDDDDD;
    --border-light: #EBEBEB;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --h1-size: 3rem;
    --h2-size: 2.25rem;
    --h3-size: 1.5rem;
    --base-size: 1rem;
    --small-size: 0.875rem;
    --tiny-size: 0.75rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Effects */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;

    /* Z-index */
    --z-fixed: 100;
    --z-modal: 1000;
}

@media (max-width: 768px) {
    :root {
        --h1-size: 2rem;
        --h2-size: 1.75rem;
        --h3-size: 1.25rem;
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--base-size);
    color: var(--text-color);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--dark);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

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

.container-wide {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: var(--h2-size);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--dark);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    font-size: var(--base-size);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border: 1px solid var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 1px solid var(--dark);
}

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

.btn-outline {
    background: transparent;
    color: var(--dark);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--dark);
}

.btn-whatsapp {
    background: var(--success-color);
    color: var(--white);
    border: 1px solid var(--success-color);
}

.btn-whatsapp:hover {
    background: #00C26F;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.0625rem;
}

.btn-small {
    padding: 8px 16px;
    font-size: var(--small-size);
}

/* ========== HEADER ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--white);
    border-bottom: 1px solid var(--border-light);
    z-index: var(--z-fixed);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    border-bottom-color: transparent;
}

.nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

/* Logo */
.nav__logo {
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
    flex-shrink: 0;
}

.nav__logo:hover {
    opacity: 0.85;
}

.nav__logo-img {
    height: 48px;
    width: auto;
}

.nav__brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

/* Navigation Menu */
.nav__menu {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav__item {
    position: relative;
}

.nav__link {
    position: relative;
    display: block;
    padding: 10px 20px;
    color: var(--dark-light);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--radius-md);
    letter-spacing: -0.2px;
}

.nav__link:hover {
    color: var(--dark);
    background: var(--bg-gray);
}

.nav__link.active {
    color: var(--dark);
    font-weight: 600;
}

.nav__link.active::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* Actions */
.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 14px rgba(0, 166, 153, 0.25);
}

.btn--primary:hover {
    box-shadow: 0 6px 20px rgba(0, 166, 153, 0.35);
    transform: translateY(-2px);
}

.btn--primary i {
    font-size: 1.125rem;
}

/* Mobile Toggle */
.nav__toggle,
.nav__close {
    display: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
}

.nav__toggle:hover,
.nav__close:hover {
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 968px) {
    .nav__brand {
        font-size: 1.125rem;
    }

    .nav__list {
        gap: 2px;
    }

    .nav__link {
        padding: 10px 16px;
        font-size: 0.875rem;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .nav {
        gap: var(--spacing-md);
    }

    .nav__logo-img {
        height: 42px;
    }

    .nav__brand {
        display: none;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 350px;
        height: 100vh;
        background: var(--white);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
        padding: var(--spacing-2xl) var(--spacing-lg);
        transition: right 0.3s ease;
        z-index: 1001;
        overflow-y: auto;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        width: 100%;
    }

    .nav__link {
        padding: 16px 20px;
        font-size: 1rem;
        text-align: left;
    }

    .nav__link.active::after {
        left: 20px;
        transform: none;
    }

    .nav__actions {
        gap: var(--spacing-sm);
    }

    .nav__actions .btn--primary {
        padding: 10px 18px;
        font-size: 0.875rem;
    }

    .nav__toggle,
    .nav__close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: var(--radius-sm);
        background: transparent;
    }

    .nav__toggle:active {
        background: var(--bg-gray);
    }

    .nav__close {
        position: absolute;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 36px;
        height: 36px;
        background: var(--bg-gray);
    }

    .nav__close:hover {
        background: var(--border-color);
    }
}

/* ========== HERO ========== */
.hero {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 166, 153, 0.95) 0%, rgba(0, 132, 137, 0.95) 100%),
                url('/images/tours/footer.jpg') center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-2xl) 0;
    width: 100%;
}

.hero__title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
    letter-spacing: -1px;
}

.text-gradient {
    background: linear-gradient(135deg, #FFE66D 0%, #FFB400 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__description {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero__buttons .btn {
    min-width: 200px;
    padding: 16px 32px;
    font-size: 1.0625rem;
    font-weight: 600;
}

.btn--outline {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--white);
}

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: var(--white);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.stat {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-slow);
}

.stat:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

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

.stat h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero__scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.25rem;
    animation: bounce 2s infinite;
    transition: var(--transition);
}

.hero__scroll a:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: var(--white);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@media (max-width: 768px) {
    .hero {
        min-height: calc(100vh - var(--header-height));
    }

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

    .hero__buttons .btn {
        width: 100%;
        max-width: 320px;
    }

    .hero__stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .hero__scroll {
        bottom: var(--spacing-lg);
    }
}

/* ========== TOURS SECTION ========== */
.tours {
    background: var(--white);
    padding: 80px 0;
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.section__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.section__description {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.7;
}

.tours__filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.filter__btn {
    padding: 12px 28px;
    background: var(--white);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

.filter__btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter__btn.active {
    background: var(--dark);
    color: var(--white);
    border-color: var(--dark);
}

.tours__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}

.tour-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-slow);
    cursor: pointer;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.tour-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.12);
    border-color: transparent;
}

.tour-card__image {
    position: relative;
    height: 260px;
    overflow: hidden;
    background: var(--bg-gray);
}

.tour-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.tour-card:hover .tour-card__image img {
    transform: scale(1.1);
}

.tour-card__badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: var(--dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.tour-card__content {
    padding: 24px;
}

.tour-card__title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
    line-height: 1.3;
    letter-spacing: -0.3px;
}

.tour-card__description {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tour-card__info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding: 12px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.tour-card__info span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.tour-card__info i {
    color: var(--primary-color);
    font-size: 1.125rem;
}

.tour-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tour-card__price {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tour-card__price > div {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.tour-card__price > div:first-child {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1;
}

.tour-card__price span {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.tour-card__footer .btn {
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    font-size: 1.125rem;
}

.loading i {
    font-size: 2rem;
    margin-bottom: 12px;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .tours {
        padding: 60px 0;
    }

    .tours__grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .tour-card__image {
        height: 220px;
    }
}

/* ========== ABOUT SECTION ========== */
.about {
    background: var(--bg-gray);
    padding: 80px 0;
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about__content h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.about__text {
    font-size: 1.0625rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.features {
    display: grid;
    gap: 20px;
}

.feature {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition-slow);
}

.feature:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
    border-color: transparent;
}

.feature__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.75rem;
}

.feature__content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
    letter-spacing: -0.2px;
}

.feature__content p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
}

.about__image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}

.about__image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 166, 153, 0.2) 0%, transparent 60%);
    z-index: 1;
    transition: var(--transition-slow);
}

.about__image:hover::before {
    opacity: 0;
}

.about__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about__image:hover img {
    transform: scale(1.08);
}

@media (max-width: 968px) {
    .about {
        padding: 60px 0;
    }

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

    .about__image {
        order: -1;
        max-height: 400px;
    }
}

/* ========== CONTACT SECTION ========== */
.contact {
    background: var(--white);
    padding: 80px 0;
}

.contact__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.contact__info {
    display: contents;
}

.contact__item {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition-slow);
    box-shadow: var(--shadow-sm);
}

.contact__item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border-color: transparent;
}

.contact__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.75rem;
}

.contact__content h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
    letter-spacing: -0.2px;
}

.contact__content a,
.contact__content p {
    font-size: 0.9375rem;
    color: var(--text-light);
    transition: var(--transition);
    line-height: 1.6;
}

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

.contact__whatsapp {
    grid-column: 1 / -1;
    margin-top: 20px;
}

.whatsapp__card {
    background: linear-gradient(135deg, var(--success-color) 0%, #00C26F 100%);
    padding: 60px 40px;
    border-radius: var(--radius-xl);
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.whatsapp__card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.whatsapp__icon {
    font-size: 4.5rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.whatsapp__card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
    position: relative;
    z-index: 1;
    letter-spacing: -0.5px;
}

.whatsapp__card p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.whatsapp__card .btn {
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .contact {
        padding: 60px 0;
    }

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

    .whatsapp__card {
        padding: 40px 24px;
    }

    .whatsapp__icon {
        font-size: 3.5rem;
    }

    .whatsapp__card h3 {
        font-size: 1.625rem;
    }
}

/* ========== FOOTER ========== */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 32px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 166, 153, 0.5) 50%, transparent 100%);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer__col:first-child {
    max-width: 320px;
}

.footer__logo {
    width: 140px;
    margin-bottom: 20px;
}

.footer__description {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

.footer__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: -0.2px;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    display: inline-block;
}

.footer__links a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: var(--transition-slow);
    font-size: 1.125rem;
}

.footer__social a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 166, 153, 0.3);
}

.footer__bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 968px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer__col:first-child {
        grid-column: 1 / -1;
        max-width: 100%;
    }
}

@media (max-width: 576px) {
    .footer {
        padding: 48px 0 24px;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* ========== MODAL ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    visibility: hidden;
    opacity: 0;
    transition: var(--transition);
}

.modal.show {
    visibility: visible;
    opacity: 1;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    max-width: 900px;
    max-height: 90vh;
    margin: 5vh auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal__close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--dark);
    box-shadow: var(--shadow-md);
    z-index: 10;
    transition: var(--transition);
}

.modal__close:hover {
    background: var(--dark);
    color: var(--white);
    transform: rotate(90deg);
}

/* ========== WHATSAPP FLOAT ========== */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--success-color) 0%, #00C26F 100%);
    color: var(--white);
    border-radius: 50%;
    font-size: 2.125rem;
    box-shadow: 0 8px 24px rgba(0, 217, 126, 0.35);
    z-index: calc(var(--z-fixed) - 1);
    transition: var(--transition-slow);
    animation: float 3s ease-in-out infinite;
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s ease-out infinite;
    z-index: -1;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(0, 217, 126, 0.45);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

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

/* ========== RESPONSIVE UTILITIES ========== */
@media (max-width: 576px) {
    .whatsapp-float {
        width: 56px;
        height: 56px;
        font-size: 1.75rem;
        bottom: 20px;
        right: 20px;
    }
}