/* ============================================================
   FRONTIER FITNESS — MAIN STYLESHEET
   Color System: Yellow (#FFD600) + Black (#0A0A0A) + Dark grays
   Typography: Oswald (headings) + Inter (body)
   Approach: Mobile-first, responsive, performance-optimized
   ============================================================ */

/* ==================== CSS CUSTOM PROPERTIES ==================== */
:root {
    --yellow: #FFD600;
    --yellow-hover: #FFC107;
    --yellow-dark: #E5C100;
    --black: #0A0A0A;
    --dark-900: #111111;
    --dark-800: #1A1A1A;
    --dark-700: #222222;
    --dark-600: #2A2A2A;
    --dark-500: #333333;
    --gray-400: #888888;
    --gray-300: #AAAAAA;
    --gray-200: #CCCCCC;
    --gray-100: #F0F0F0;
    --white: #FFFFFF;
    --whatsapp: #25D366;
    --danger: #FF4444;

    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 30px rgba(255,214,0,0.15);

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    --nav-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-200);
    background-color: var(--black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--yellow-hover);
}

ul {
    list-style: none;
}

::selection {
    background: var(--yellow);
    color: var(--black);
}

/* ==================== UTILITIES ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    position: relative;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--yellow);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-400);
    max-width: 560px;
    margin: 0 auto;
}

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

.text-accent {
    color: var(--yellow);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--yellow);
    color: var(--black);
    border-color: var(--yellow);
}

.btn-primary:hover {
    background: var(--yellow-hover);
    border-color: var(--yellow-hover);
    color: var(--black);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 214, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--yellow);
    color: var(--yellow);
    transform: translateY(-2px);
}

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

.btn-whatsapp:hover {
    background: #22c55e;
    border-color: #22c55e;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--white);
}

.nav-logo img {
    border-radius: var(--radius-sm);
}

.nav-logo strong {
    color: var(--yellow);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-300);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--yellow);
}

.nav-cta {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--black);
    background: var(--yellow);
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background: var(--yellow-hover);
    color: var(--black);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(255, 214, 0, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(255, 214, 0, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 214, 0, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--black) 0%, var(--dark-900) 100%);
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 214, 0, 0.02) 2px,
            rgba(255, 214, 0, 0.02) 4px
        );
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--yellow);
    padding: 8px 20px;
    border: 1px solid rgba(255, 214, 0, 0.3);
    border-radius: var(--radius-full);
    margin-bottom: 32px;
    background: rgba(255, 214, 0, 0.05);
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 24px;
}

.hero-line {
    display: block;
    font-size: clamp(3rem, 10vw, 7rem);
    color: var(--white);
}

.hero-accent {
    color: var(--yellow);
    text-shadow: 0 0 60px rgba(255, 214, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--gray-400);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--yellow);
    line-height: 1;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--yellow);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    display: block;
    width: 3px;
    height: 8px;
    background: var(--yellow);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(12px); opacity: 0.3; }
}

/* ==================== ABOUT SECTION ==================== */
.about {
    background: var(--dark-900);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 1.05rem;
    color: var(--gray-300);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--dark-800);
    border-radius: var(--radius-md);
    border: 1px solid var(--dark-600);
    transition: all var(--transition-base);
}

.about-feature:hover {
    border-color: var(--yellow);
    transform: translateX(4px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 214, 0, 0.1);
    border-radius: var(--radius-sm);
    color: var(--yellow);
}

.about-feature strong {
    display: block;
    color: var(--white);
    font-size: 0.95rem;
}

.about-feature span {
    font-size: 0.85rem;
    color: var(--gray-400);
}

.about-visual {
    position: relative;
}

.about-image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 200px 200px;
    gap: 12px;
}

.about-img-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
}

.about-img-1 {
    grid-row: 1 / 3;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--dark-700), var(--dark-800));
}

.about-experience-badge {
    position: absolute;
    bottom: -20px;
    right: 20px;
    background: var(--yellow);
    color: var(--black);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.exp-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    display: block;
}

.exp-text {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.3;
}

/* ==================== PROGRAMS SECTION ==================== */
.programs {
    background: var(--black);
}

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

.program-card {
    position: relative;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition-base);
    overflow: hidden;
}

.program-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--yellow);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.program-card:hover {
    border-color: rgba(255, 214, 0, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.program-card:hover::before {
    transform: scaleX(1);
}

.program-card.featured {
    border-color: var(--yellow);
    background: linear-gradient(180deg, rgba(255, 214, 0, 0.05) 0%, var(--dark-800) 100%);
}

.program-card.featured::before {
    transform: scaleX(1);
}

.program-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--black);
    background: var(--yellow);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.program-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 214, 0, 0.1);
    border-radius: var(--radius-md);
    color: var(--yellow);
    margin-bottom: 20px;
}

.program-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.program-card p {
    font-size: 0.95rem;
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 20px;
}

.program-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.program-features li {
    font-size: 0.85rem;
    color: var(--gray-300);
    padding-left: 20px;
    position: relative;
}

.program-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--yellow);
    border-radius: 50%;
}

.program-cta {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--yellow);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-fast);
}

.program-cta:hover {
    letter-spacing: 2px;
}

/* ==================== PRICING SECTION ==================== */
.pricing {
    background: var(--dark-900);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 214, 0, 0.2);
}

.pricing-card.popular {
    border-color: var(--yellow);
    background: linear-gradient(180deg, rgba(255, 214, 0, 0.08) 0%, var(--dark-800) 40%);
    transform: scale(1);
}

.pricing-card.popular:hover {
    transform: translateY(-4px) scale(1);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--black);
    background: var(--yellow);
    padding: 6px 20px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.pricing-tagline {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-bottom: 24px;
}

.pricing-amount {
    margin-bottom: 28px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
}

.currency {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--yellow);
    margin-top: 8px;
}

.price {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.period {
    font-size: 0.85rem;
    color: var(--gray-400);
    align-self: flex-end;
    margin-bottom: 8px;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--gray-200);
}

.pricing-features li svg {
    flex-shrink: 0;
    color: var(--yellow);
}

.pricing-features li.muted {
    color: var(--gray-400);
    opacity: 0.5;
}

.pricing-features li.muted svg {
    color: var(--gray-400);
}

.pricing-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-400);
    margin-top: 40px;
}

.pricing-note strong {
    color: var(--yellow);
}

/* ==================== TRAINERS SECTION ==================== */
.trainers {
    background: var(--black);
}

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

.trainer-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.trainer-card:hover {
    border-color: rgba(255, 214, 0, 0.3);
    transform: translateY(-4px);
}

.trainer-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--yellow), var(--yellow-dark));
    padding: 3px;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--dark-700);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.trainer-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.trainer-role {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--yellow);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.trainer-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ==================== TESTIMONIALS SECTION ==================== */
.testimonials {
    background: var(--dark-900);
}

.testimonials-slider {
    position: relative;
    overflow: hidden;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.testimonial-card {
    flex: 0 0 100%;
    padding: 40px 32px;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    margin: 0 12px;
    min-width: calc(100% - 24px);
}

.testimonial-stars {
    color: var(--yellow);
    font-size: 1.2rem;
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.testimonial-card blockquote {
    font-size: 1.05rem;
    color: var(--gray-200);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 24px;
    position: relative;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--yellow);
    color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
}

.testimonial-author strong {
    display: block;
    color: var(--white);
    font-size: 0.95rem;
}

.testimonial-author span {
    font-size: 0.8rem;
    color: var(--gray-400);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
}

.slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--dark-600);
    background: var(--dark-800);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.slider-btn:hover {
    border-color: var(--yellow);
    color: var(--yellow);
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--dark-600);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.slider-dot.active {
    background: var(--yellow);
    width: 28px;
    border-radius: 5px;
}

/* ==================== CTA BANNER ==================== */
.cta-banner {
    padding: 80px 0;
    background:
        linear-gradient(135deg, rgba(255, 214, 0, 0.1) 0%, transparent 50%),
        var(--black);
    border-top: 1px solid var(--dark-600);
    border-bottom: 1px solid var(--dark-600);
}

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

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.05rem;
    color: var(--gray-400);
    max-width: 560px;
    margin: 0 auto 32px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    background: var(--dark-900);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-card:hover {
    border-color: rgba(255, 214, 0, 0.3);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 214, 0, 0.1);
    border-radius: var(--radius-sm);
    color: var(--yellow);
}

.contact-card h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

.contact-card a {
    color: var(--yellow);
}

.contact-map {
    min-height: 350px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--dark-600);
    background: var(--dark-800);
}

.contact-map iframe {
    filter: grayscale(80%) invert(92%) contrast(90%);
    transition: filter var(--transition-base);
}

.contact-map:hover iframe {
    filter: grayscale(30%) invert(92%) contrast(90%);
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--dark-800);
    padding: 60px 0 0;
    border-top: 1px solid var(--dark-600);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--gray-400);
    margin-top: 16px;
    line-height: 1.7;
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--dark-700);
    border: 1px solid var(--dark-600);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--yellow);
    border-color: var(--yellow);
    color: var(--black);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--yellow);
    padding-left: 4px;
}

.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.footer-contact p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 12px;
}

.footer-phone {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--yellow);
}

.footer-bottom {
    border-top: 1px solid var(--dark-600);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* ==================== WHATSAPP FLOATING BUTTON ==================== */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--whatsapp);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-base);
    animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6), 0 0 0 8px rgba(37, 211, 102, 0.1); }
}

/* ==================== BACK TO TOP ==================== */
.back-to-top {
    position: fixed;
    bottom: 90px;
    right: 24px;
    z-index: 999;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--yellow);
    border-color: var(--yellow);
    color: var(--black);
}

/* ==================== SCROLL ANIMATIONS ==================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] {
    transform: translateY(30px);
}

[data-animate="fade-down"] {
    transform: translateY(-30px);
}

[data-animate="fade-right"] {
    transform: translateX(-30px);
}

[data-animate="fade-left"] {
    transform: translateX(30px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0, 0);
}

/* ==================== RESPONSIVE — TABLET (768px+) ==================== */
@media (min-width: 768px) {
    .container {
        padding: 0 32px;
    }

    .section {
        padding: 100px 0;
    }

    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }

    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-card.popular {
        transform: scale(1.05);
    }

    .pricing-card.popular:hover {
        transform: translateY(-4px) scale(1.05);
    }

    .trainers-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
    }

    .about-image-grid {
        grid-template-rows: 180px 180px;
    }
}

/* ==================== RESPONSIVE — DESKTOP (1024px+) ==================== */
@media (min-width: 1024px) {
    .section {
        padding: 120px 0;
    }

    .programs-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .trainers-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .about-image-grid {
        grid-template-rows: 220px 220px;
    }
}

/* ==================== RESPONSIVE — MOBILE NAV (< 768px) ==================== */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--dark-800);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 32px;
        gap: 4px;
        transition: right var(--transition-base);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
        border-left: 1px solid var(--dark-600);
    }

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

    .nav-link {
        font-size: 1rem;
        padding: 12px 0;
        width: 100%;
    }

    .nav-cta {
        margin-top: 16px;
        text-align: center;
        width: 100%;
        display: block;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .testimonial-card {
        padding: 28px 20px;
    }

    .contact-map {
        min-height: 280px;
    }
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    [data-animate] {
        opacity: 1;
        transform: none;
    }
}