/* 
   runvital-club - Mobile App & Product Design Studio
   Design Concept: Asymmetric glassmorphism with organic shapes and bold typography
   Modern trend: Layered glass cards with gradient overlays and floating elements
*/

/* CSS Variables */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --neutral-gradient: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --text-white: #ffffff;
    
    --bg-primary: #ffffff;
    --bg-light: #f7fafc;
    --bg-dark: #1a202c;
    
    /* Glass effects */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-accent: 'Crimson Text', Georgia, serif;
    
    /* Spacing */
    --section-padding: 6rem 0;
    --container-max: 1200px;
    --grid-gap: 2rem;
    
    /* Animation */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-light);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

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

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

/* Container & Layout */
.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-family: var(--font-accent);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(26, 32, 44, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    z-index: 1000;
    transform: translateY(100%);
    transition: var(--transition-smooth);
    color: var(--text-white);
}

.cookie-banner.visible {
    transform: translateY(0);
}

.cookie-banner.minimized .cookie-body {
    display: none;
}

.cookie-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 1.5rem;
}

.cookie-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.cookie-toggle {
    background: none;
    border: 1px solid var(--glass-border);
    color: var(--text-white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.cookie-toggle:hover {
    background: var(--glass-bg);
}

.cookie-options {
    display: grid;
    gap: 1rem;
    margin: 1.5rem 0;
}

.cookie-option {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    cursor: pointer;
}

.cookie-option input {
    margin-right: 0.75rem;
}

.cookie-desc {
    font-size: 0.875rem;
    color: #a0aec0;
    margin-left: 1.5rem;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-cookie {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-white);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-weight: 500;
}

.btn-cookie:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-cookie.accept-all {
    background: var(--primary-gradient);
    border: none;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
    padding: 1rem 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-text {
    font-family: var(--font-accent);
    font-size: 1.75rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    transition: var(--transition-smooth);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: var(--transition-smooth);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-smooth);
}

/* Hero Section - Split Layout */
.hero {
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 70vh;
}

.hero-text {
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-family: var(--font-accent);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.title-accent {
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: italic;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-bounce);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.3);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    z-index: 1;
}

.visual-container {
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition-smooth);
}

.visual-container:hover {
    transform: perspective(1000px) rotateY(-3deg) rotateX(3deg);
}

.hero-image {
    width: 100%;
    max-width: 500px;
    border-radius: 1.5rem;
    box-shadow: var(--glass-shadow);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--glass-shadow);
    animation: float 3s ease-in-out infinite;
}

.float-card svg {
    color: #667eea;
}

.card-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    left: -15%;
    animation-delay: 1s;
}

.card-3 {
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

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

/* Hero Shapes */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-gradient);
    top: 10%;
    right: 10%;
    animation: rotate 20s linear infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--secondary-gradient);
    bottom: 20%;
    left: 5%;
    animation: rotate 15s linear infinite reverse;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--grid-gap);
}

.service-card {
    padding: 2.5rem;
    border-radius: 1.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(31, 38, 135, 0.2);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

.service-title {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Portfolio Section */
.portfolio {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1.5rem;
    height: 600px;
}

.portfolio-item {
    border-radius: 1.5rem;
    overflow: hidden;
    position: relative;
    transition: var(--transition-smooth);
}

.portfolio-item.featured {
    grid-row: 1 / 3;
}

.portfolio-item:hover {
    transform: scale(1.02);
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: var(--text-white);
    padding: 2rem;
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-item:hover .project-image {
    transform: scale(1.1);
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.project-tags span {
    background: var(--glass-bg);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    border: 1px solid var(--glass-border);
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--bg-primary);
}

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

.about-description {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.about-visual {
    position: relative;
}

.about-image {
    border-radius: 1.5rem;
    box-shadow: var(--glass-shadow);
}

.visual-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: var(--secondary-gradient);
    border-radius: 50%;
    opacity: 0.8;
    z-index: -1;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-description {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
}

.contact-item svg {
    color: #667eea;
    flex-shrink: 0;
}

/* Contact Form */
.contact-form-container {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: var(--glass-shadow);
}

.form-title {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input, .form-textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid transparent;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 0.75rem;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.8);
}

.form-help {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.form-submit {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--primary-gradient);
    color: var(--text-white);
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-bounce);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 3rem 0 1.5rem;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: #a0aec0;
    line-height: 1.6;
}

.footer-heading {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.footer-details p {
    color: #a0aec0;
    margin-bottom: 0.5rem;
}

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

.footer-nav li {
    margin-bottom: 0.75rem;
}

.footer-nav a {
    color: #a0aec0;
    transition: var(--transition-smooth);
}

.footer-nav a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 1.5rem;
    text-align: center;
}

.footer-copyright {
    color: #a0aec0;
    font-size: 0.875rem;
}

/* Space Section for index_space.html */
#space {
    min-height: 60vh;
    padding: 8rem 0 4rem;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
*:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}