/* Reset a základní styly */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ZEUSCORE Brand Colors */
    --neon-blue: #00AEEF;        /* Neonově modrá - hlavní barva značky */
    --primary-blue: #007BFF;      /* Tmavě modrá - přechody, detaily */
    --dark-gray: #1C1C1C;        /* Tmavě šedá - pozadí */
    --white: #FFFFFF;            /* Bílá - negativní varianta */
    
    /* Additional colors for energy theme */
    --electric-blue: #00D4FF;
    --lightning-yellow: #FFE600;
    --power-purple: #8B5CF6;
    --energy-green: #10B981;
    
    /* Gradients */
    --hero-gradient: linear-gradient(135deg, var(--dark-gray) 0%, #2D2D2D 50%, var(--dark-gray) 100%);
    --power-gradient: linear-gradient(45deg, var(--neon-blue) 0%, var(--primary-blue) 50%, var(--electric-blue) 100%);
    --lightning-gradient: linear-gradient(90deg, var(--lightning-yellow) 0%, var(--neon-blue) 100%);
    --energy-glow: radial-gradient(circle, var(--neon-blue) 0%, transparent 70%);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Orbitron', 'Inter', monospace; /* Futuristic font similar to Ethnocentric */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 40px rgba(0, 175, 255, 0.3);
}

/* Základní styling */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--white);
    background: #000000;
    height: 100vh;
    overflow: hidden;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Clean Background with Central Gradient */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

/* Central Gradient Effect - Basedash Style */
.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
}

.orb-1 {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--neon-blue) 0%, transparent 60%);
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: gentleGlow 8s ease-in-out infinite alternate;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-blue) 0%, transparent 50%);
    top: 60%;
    left: 10%;
    animation: gentleGlow2 10s ease-in-out infinite alternate;
    animation-delay: 3s;
}

.orb-3 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--electric-blue) 0%, transparent 55%);
    bottom: 10%;
    right: 5%;
    animation: gentleGlow3 9s ease-in-out infinite alternate;
    animation-delay: 6s;
}



@keyframes gentleGlow {
    0% {
        opacity: 0.08;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0.15;
        transform: translate(-50%, -50%) scale(1.05);
    }
}

@keyframes gentleGlow2 {
    0% {
        opacity: 0.05;
        transform: scale(1);
    }
    100% {
        opacity: 0.12;
        transform: scale(1.03);
    }
}

@keyframes gentleGlow3 {
    0% {
        opacity: 0.04;
        transform: scale(1);
    }
    100% {
        opacity: 0.1;
        transform: scale(1.04);
    }
}



/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Header */
.header {
    padding: var(--space-sm) 0 0 0;
    text-align: center;
    margin-bottom: 0;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: slideDown 1s ease-out;
}

.logo {
    width: 200px;
    height: 200px;
    filter: drop-shadow(0 0 50px var(--neon-blue));
    animation: energyGlow 4s ease-in-out infinite alternate;
    transition: all 0.4s ease;
}

.logo:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 0 60px var(--neon-blue));
}

@keyframes energyGlow {
    0% {
        filter: drop-shadow(0 0 40px var(--neon-blue));
    }
    100% {
        filter: drop-shadow(0 0 70px rgba(0, 174, 239, 0.9));
    }
}



@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero sekce */
.hero {
    text-align: center;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-family);
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: heroTextReveal 1.5s ease-out 0.3s both;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
    position: relative;
    overflow: hidden;
}

.title-line:first-child {
    color: var(--white);
    margin-bottom: 0.1em;
}

.highlight {
    background: linear-gradient(135deg, var(--neon-blue) 0%, var(--primary-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

@keyframes heroTextReveal {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}



.hero-description {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-lg);
    line-height: 1.4;
    animation: fadeInUp 1s ease-out 0.8s both;
    font-weight: 400;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

/* Odpočítávání */
.countdown-container {
    margin-bottom: var(--space-lg);
    animation: fadeInUp 1s ease-out 0.9s both;
}

.countdown-text {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-sm);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md) var(--space-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    min-width: 80px;
    transition: all 0.3s ease;
}

.countdown-item:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 174, 239, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.countdown-number {
    font-family: var(--font-family);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.countdown-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}



/* Email formulář */
.email-form {
    max-width: 400px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.email-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--white);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    font-weight: 400;
    box-sizing: border-box;
}

.email-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--font-size-sm);
}

.email-input:focus {
    outline: none;
    border-color: var(--neon-blue);
    box-shadow: 0 0 0 2px rgba(0, 174, 239, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.email-input:focus::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.submit-btn {
    width: 100%;
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--neon-blue) 0%, var(--primary-blue) 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    box-sizing: border-box;
}

.submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(0, 174, 239, 0.4);
    filter: brightness(1.1);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-icon {
    transition: transform 0.3s ease;
    font-size: 1em;
}

.submit-btn:hover .btn-icon {
    transform: translateX(2px);
}

.form-note {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    line-height: 1.4;
    margin-top: var(--space-sm);
}

/* Zpráva o úspěchu */
.success-message {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-lg);
    color: var(--white);
    margin-top: var(--space-lg);
    animation: slideUp 0.5s ease-out;
}

.success-message.show {
    display: flex;
}

.success-icon {
    width: 24px;
    height: 24px;
    background: #22c55e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 700;
}



/* Footer */
.footer {
    text-align: center;
    padding: var(--space-sm) 0;
    color: var(--gray-400);
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

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

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

/* Responzivní design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-sm);
        height: 100vh;
        justify-content: center;
    }
    
    .header {
        padding: 0;
        flex-shrink: 0;
        margin-bottom: var(--space-xs);
    }
    
    .logo {
        width: 150px;
        height: 150px;
    }
    
    .hero {
        flex: none;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 5vw, 2.2rem);
        margin-bottom: var(--space-sm);
    }
    
    .hero-description {
        font-size: var(--font-size-sm);
        margin-bottom: var(--space-md);
        padding: 0 var(--space-sm);
    }
    
    .countdown-container {
        margin-bottom: var(--space-md);
    }
    
    .countdown-text {
        margin-bottom: var(--space-xs);
        font-size: var(--font-size-xs);
    }
    
    .countdown {
        gap: var(--space-xs);
    }
    
    .countdown-item {
        min-width: 60px;
        padding: var(--space-sm) var(--space-xs);
    }
    
    .countdown-number {
        font-size: var(--font-size-lg);
    }
    
    .countdown-label {
        font-size: 0.6rem;
    }
    
    .email-form {
        max-width: 300px;
    }
    
    .form-group {
        gap: var(--space-sm);
    }
    
    .email-input {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-xs);
    }
    
    .email-input::placeholder {
        font-size: var(--font-size-xs);
    }
    
    .submit-btn {
        padding: var(--space-sm);
        font-size: var(--font-size-xs);
    }
    
    .form-note {
        font-size: 0.6rem;
        margin-top: var(--space-xs);
    }
    
    .footer {
        padding: var(--space-xs) 0;
        position: absolute;
        bottom: var(--space-xs);
        left: 0;
        right: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
        min-height: 100vh;
        justify-content: center;
    }
    
    .header {
        padding: 0;
        margin-bottom: var(--space-xs);
    }
    
    .logo {
        width: 160px;
        height: 160px;
    }
    
    .hero-title {
        font-size: clamp(1.2rem, 4vw, 1.8rem);
        margin-bottom: var(--space-xs);
        padding: 0 0.5rem;
    }
    
    .hero-description {
        font-size: var(--font-size-xs);
        padding: 0 0.5rem;
        margin-bottom: var(--space-sm);
    }
    
    .countdown-text {
        font-size: 0.6rem;
    }
    
    .countdown {
        grid-template-columns: repeat(2, 1fr);
        display: grid;
        gap: var(--space-xs);
        max-width: 240px;
        margin: 0 auto;
    }
    
    .countdown-item {
        min-width: 50px;
        padding: var(--space-xs);
    }
    
    .countdown-number {
        font-size: var(--font-size-base);
    }
    
    .countdown-label {
        font-size: 0.5rem;
    }
    
    .email-form {
        max-width: 260px;
        padding: 0 0.5rem;
    }
    
    .email-input {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.7rem;
        min-width: 0;
        width: 100%;
    }
    
    .email-input::placeholder {
        font-size: 0.7rem;
    }
    
    .submit-btn {
        padding: var(--space-xs);
        font-size: 0.7rem;
        min-width: 0;
        width: 100%;
    }
    
    .form-note {
        font-size: 0.5rem;
        padding: 0 0.25rem;
    }
    
    .footer {
        font-size: 0.6rem;
        position: absolute;
        bottom: var(--space-xs);
        left: 0;
        right: 0;
    }
    
    .orb-1 {
        width: 400px;
        height: 400px;
    }
    
    .orb-2 {
        width: 350px;
        height: 350px;
    }
    
    .orb-3 {
        width: 380px;
        height: 380px;
    }
}

/* iPhone SE and smaller devices */
@media (max-width: 375px) {
    .container {
        padding: 0 0.75rem;
        min-height: 100vh;
        max-width: 100vw;
        overflow-x: hidden;
        justify-content: center;
    }
    
    .header {
        padding: 0;
        margin-bottom: var(--space-xs);
    }
    
    .logo {
        width: 140px;
        height: 140px;
    }
    
    .hero-title {
        font-size: clamp(1rem, 4.2vw, 1.5rem);
        padding: 0 0.5rem;
        line-height: 1.2;
    }
    
    .hero-description {
        padding: 0 0.5rem;
        font-size: 0.75rem;
        line-height: 1.3;
    }
    
    .countdown {
        max-width: 200px;
        width: 100%;
    }
    
    .countdown-item {
        min-width: 40px;
        padding: 0.25rem 0.125rem;
        flex: 1;
    }
    
    .countdown-number {
        font-size: 0.875rem;
    }
    
    .countdown-label {
        font-size: 0.5rem;
    }
    
    .email-form {
        max-width: 100%;
        width: 100%;
        padding: 0 0.5rem;
    }
    
    .email-input {
        min-width: 0;
        width: 100%;
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .email-input::placeholder {
        font-size: 0.75rem;
    }
    
    .submit-btn {
        padding: 0.5rem;
        font-size: 0.75rem;
        min-width: 0;
        width: 100%;
    }
    
    .form-note {
        font-size: 0.5rem;
        padding: 0 0.25rem;
        line-height: 1.3;
    }
    
    .orb-1 {
        width: 300px;
        height: 300px;
    }
    
    .orb-2 {
        width: 250px;
        height: 250px;
    }
    
    .orb-3 {
        width: 280px;
        height: 280px;
    }
}

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

/* Focus states pro keyboard navigation */
.email-input:focus,
.submit-btn:focus {
    outline: 2px solid var(--light-blue);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .background-animation {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}