/* ==========================================
   PULSE - Premium Fitness Club
   Main Stylesheet
   ========================================== */

/* ==========================================
   CSS VARIABLES - Brand Colors & Typography
   ========================================== */
:root {
    /* Brand Colors */
    --color-obsidian: #111315;
    --color-pulse-red: #FF3B30;
    --color-steel-slate: #1C1E21;
    --color-pure-white: #F8F9FA;
    --color-gray-medium: #6C757D;
    --color-gray-light: #DEE2E6;

    /* Typography */
    --font-heading: 'Montserrat', 'Tajawal', sans-serif;
    --font-body: 'Inter', 'Cairo', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-base: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-obsidian);
    color: var(--color-pure-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-light);
}

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

.text-pulse {
    color: var(--color-pulse-red);
}

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

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

.section-dark {
    background-color: var(--color-steel-slate);
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(17, 19, 21, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition-base);
}

.nav-menu a:hover {
    color: var(--color-pulse-red);
    background-color: rgba(255, 59, 48, 0.1);
}

.nav-menu a.active {
    color: var(--color-pulse-red);
}

.nav-menu a.btn-primary.active {
    color: var(--color-pure-white);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-pure-white);
    transition: var(--transition-base);
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-pulse-red);
    color: var(--color-pure-white);
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.3);
}

.btn-primary:hover {
    background-color: #E6342A;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 59, 48, 0.4);
}

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

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

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(17, 19, 21, 0.8) 0%, rgba(28, 30, 33, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding: var(--spacing-md);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray-light);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==========================================
   CARDS
   ========================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.card {
    background-color: var(--color-steel-slate);
    padding: var(--spacing-md);
    border-radius: 8px;
    transition: var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 59, 48, 0.2);
    border-color: var(--color-pulse-red);
}

.card-icon {
    font-size: 3rem;
    color: var(--color-pulse-red);
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-description {
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-md);
}

.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
}

.card img.card-icon-image {
    display: block;
    width: 96px;
    height: 96px;
    object-fit: contain;
    border-radius: 0;
    margin-bottom: var(--spacing-sm);
}

.card img.contact-info-icon {
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 0;
    margin: 0;
}

/* ==========================================
   TESTIMONIALS
   ========================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial {
    background-color: var(--color-steel-slate);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-pulse-red);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-light);
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-pulse-red);
}

.testimonial-role {
    font-size: 0.9rem;
    color: var(--color-gray-medium);
}

.stars {
    color: var(--color-pulse-red);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   PRICING CARDS
   ========================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.pricing-card {
    background-color: var(--color-steel-slate);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--color-pulse-red);
    transform: translateY(-10px);
}

.pricing-card.featured {
    border-color: var(--color-pulse-red);
    box-shadow: 0 10px 40px rgba(255, 59, 48, 0.3);
}

.pricing-badge {
    display: inline-block;
    background-color: var(--color-pulse-red);
    color: var(--color-pure-white);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.pricing-title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-pulse-red);
    margin-bottom: var(--spacing-xs);
}

.pricing-period {
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-md);
}

.pricing-features {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-gray-light);
}

.pricing-features li:before {
    content: "✓ ";
    color: var(--color-pulse-red);
    font-weight: 700;
    margin-right: 0.5rem;
}

/* ==========================================
   FORMS
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--color-steel-slate);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: var(--color-pure-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-pulse-red);
    box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.1);
}

.booking-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    gap: var(--spacing-md);
    align-items: start;
}

.booking-form {
    padding: var(--spacing-md);
}

.booking-form-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.booking-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 var(--spacing-sm);
}

.booking-notes {
    grid-column: 1 / -1;
}

.booking-submit {
    width: 100%;
}

.booking-form-note {
    margin: var(--spacing-sm) 0 0;
    color: var(--color-gray-medium);
    font-size: 0.9rem;
    text-align: center;
}

.booking-aside {
    padding-top: 0.25rem;
}

.booking-aside-image {
    height: 190px;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border-radius: 8px;
}

.booking-aside-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.booking-aside h3 {
    font-size: 1.5rem;
}

.booking-detail {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: var(--spacing-md);
}

.booking-detail-icon {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.booking-detail div {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.booking-detail span {
    color: var(--color-gray-light);
    font-size: 0.92rem;
}

.booking-phone-link {
    display: inline-block;
    margin-top: var(--spacing-md);
    color: var(--color-pulse-red);
    font-size: 1.1rem;
    font-weight: 700;
}

@media (max-width: 768px) {
    .booking-layout {
        grid-template-columns: 1fr;
    }

    .booking-aside {
        order: -1;
    }
}

@media (max-width: 480px) {
    .booking-form {
        padding: var(--spacing-sm);
    }

    .booking-fields {
        grid-template-columns: 1fr;
    }

    .booking-notes {
        grid-column: auto;
    }
}

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

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background-color: var(--color-steel-slate);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-section h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-pulse-red);
}

.footer-section p,
.footer-section a {
    color: var(--color-gray-light);
    margin-bottom: 0.5rem;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.footer-contact-icon {
    flex: 0 0 30px;
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.footer-section a:hover {
    color: var(--color-pulse-red);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

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

.social-links a:hover {
    background-color: var(--color-pulse-red);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-gray-medium);
}

/* ==========================================
   WHATSAPP BUTTON
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
    z-index: 999;
    transition: var(--transition-base);
    cursor: pointer;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

.whatsapp-float img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ==========================================
   RESPONSIVE - TABLET
   ========================================== */
@media (max-width: 768px) {
    .hero {
        margin-top: 60px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(17, 19, 21, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-lg) var(--spacing-md);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

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

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .cards-grid,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */
@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .logo img {
        height: 40px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .whatsapp-float {
        width: 56px;
        height: 56px;
        bottom: 20px;
        right: 20px;
    }

}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}