/*
Theme Name: Premium Fitness Theme
Theme URI: https://yoursite.com
Author: Your Name
Author URI: https://yoursite.com
Description: A premium fitness website theme with modern design, bold typography, and dynamic animations. Perfect for gyms, fitness centers, personal trainers, and wellness studios.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: premium-fitness
Tags: fitness, gym, sports, health, wellness, responsive, modern
*/

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Colors */
    --primary-black: #0a0a0a;
    --primary-orange: #ff5722;
    --accent-gold: #ffc107;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --medium-gray: #666666;
    --dark-gray: #1a1a1a;
    
    /* Typography */
    --font-heading: 'Bebas Neue', 'Impact', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-accent: 'Oswald', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--primary-black);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

h1 {
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: 0.05em;
}

h2 {
    font-size: clamp(2.5rem, 6vw, 5rem);
}

h3 {
    font-size: clamp(1.75rem, 4vw, 3rem);
}

h4 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

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

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

/* ==================== LAYOUT ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-fluid {
    width: 100%;
    padding: 0 2rem;
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* ==================== HEADER & NAVIGATION ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem 0;
    transition: var(--transition-base);
}

.site-header.scrolled {
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.site-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--white);
    letter-spacing: 0.1em;
}

.site-logo span {
    color: var(--primary-orange);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.main-nav a {
    color: var(--white);
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    padding: 0.5rem 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-orange);
    transition: width var(--transition-base);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: #e64a19;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 87, 34, 0.4);
}

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

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

.btn-large {
    padding: 1.5rem 3.5rem;
    font-size: 1.2rem;
}

/* ==================== HERO SECTION ==================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--dark-gray) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.03) 2px, rgba(255, 255, 255, 0.03) 4px);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    color: var(--white);
    z-index: 10;
    animation: fadeInUp 1s ease;
}

.hero-title {
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 3rem;
}

.hero-decoration {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary-orange) 0%, transparent 70%);
    opacity: 0.1;
    animation: pulse 4s ease-in-out infinite;
}

.hero-decoration:nth-child(1) {
    top: -200px;
    right: -200px;
}

.hero-decoration:nth-child(2) {
    bottom: -200px;
    left: -200px;
    animation-delay: 2s;
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 0;
    filter: grayscale(20%);
}

.about-image::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-orange);
    z-index: -1;
}

.about-content h2 {
    margin-bottom: 2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--primary-orange);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--medium-gray);
}

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

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

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

.service-icon {
    font-size: 3rem;
    color: var(--primary-orange);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--medium-gray);
    font-size: 1rem;
}

/* ==================== CTA SECTION ==================== */
.cta-section {
    background: var(--primary-black);
    color: var(--white);
    text-align: center;
    padding: 6rem 0;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.cta-content {
    position: relative;
    z-index: 10;
}

.cta-section h2 {
    margin-bottom: 1.5rem;
}

.cta-section p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* ==================== FOOTER ==================== */
.site-footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.8rem;
}

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

.footer-section a:hover {
    color: var(--primary-orange);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.15;
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        background: var(--primary-black);
        padding: 5rem 2rem;
        transition: left var(--transition-base);
        z-index: 999;
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 2rem;
    }
    
    .mobile-menu-toggle {
        display: block;
        z-index: 1001;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .btn {
        padding: 0.8rem 2rem;
        font-size: 0.9rem;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}