/* Main CSS - Cosmos Website */

/* Import General Sans Font */
@import url('https://fonts.googleapis.com/css2?family=General+Sans:wght@200;300;400;500;600;700&display=swap');

/* CSS Variables - Unified Premium Palette (Single Theme) */
:root {
    /* Colors - Unified Premium Palette */
    --primary-color: #6EA8FF; /* vivid, legible blue */
    --primary-dark: #5A8FFB;
    --primary-light: #8EC4FF;
    --primary-gradient: linear-gradient(135deg, #6EA8FF 0%, #8A56E0 50%, #E04AE0 100%);
    --icon-gradient: linear-gradient(135deg, #2E6EFF 0%, #6EA8FF 50%, #3EE7B5 100%);

    --secondary-color: #8A56E0;
    --accent-color: #3EE7B5;
    --accent-gradient: linear-gradient(135deg, #3EE7B5 0%, #6EA8FF 100%);

    --danger-color: #EF6B6B;
    --warning-color: #F0A84B;
    --success-color: #34D399;

    /* Text & Neutral - Pure White on Black */
    --white: #ffffff;
    --text-primary: #ffffff;
    --text-secondary: #ffffff;
    --text-tertiary: rgba(255, 255, 255, 0.8);

    /* Neutral Grays - Pure Black Theme */
    --gray-50: #000000;
    --gray-100: #0a0a0a;
    --gray-200: #111111;
    --gray-300: #1a1a1a;
    --gray-400: #222222;
    --gray-500: #2a2a2a;
    --gray-600: #333333;
    --gray-700: #444444;
    --gray-800: #555555;
    --gray-900: #ffffff;

    /* Backgrounds & Surfaces - Solid Black */
    --bg-primary: #000000; /* pure black */
    --bg-secondary: #000000; /* pure black */
    --bg-tertiary: #0a0a0a; /* slightly lighter for depth */
    --bg-card: #0a0a0a; /* dark cards */
    --bg-card-hover: #111111; /* slightly lighter on hover */

    /* Borders - Subtle White */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    
    /* Typography - General Sans Font Family */
    --font-family: 'General Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --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;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    --spacing-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --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 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Primary glow and focus */
    --primary-glow: 0 6px 25px rgba(74, 112, 224, 0.35);
    --focus-ring: rgba(74, 112, 224, 0.18);
    --glass-card: rgba(255, 255, 255, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.75;
    color: #ffffff;
    background: #000000;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: #ffffff;
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-6);
}

h1 {
    font-size: clamp(2.25rem, 3.8vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.25rem);
    font-weight: 700;
}

h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h4 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

h5 {
    font-size: var(--font-size-xl);
    font-weight: 500;
}

h6 {
    font-size: var(--font-size-lg);
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-6);
    color: #ffffff;
    font-weight: 400;
    line-height: 1.75;
}

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

a:hover {
    color: var(--primary-dark);
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-12);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    white-space: nowrap;
}

.btn:focus {
    outline: 3px solid var(--focus-ring);
    outline-offset: 3px;
    box-shadow: 0 6px 30px rgba(0,0,0,0.25), 0 0 0 6px var(--focus-ring);
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--primary-glow);
    border: none;
    position: relative;
    overflow: hidden;
    font-weight: 700;
}

.btn-primary i,
.btn-primary svg {
    color: var(--white);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    filter: brightness(1.04);
    box-shadow: 0 10px 40px rgba(74,112,224,0.45), 0 0 60px rgba(138,86,224,0.25);
    transform: translateY(-2px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-fast);
}

.btn-outline i,
.btn-outline svg {
    color: #ffffff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7);
    transform: translateY(-2px);
}

.btn-outline:hover i,
.btn-outline:hover svg {
    color: #ffffff;
}



.btn-large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

/* Gradient Text - Premium Style - Now Bold White */
.gradient-text {
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
    color: #ffffff;
    font-weight: 700;
    display: inline-block;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-20);
}

.section-title {
    margin-bottom: var(--spacing-6);
    line-height: 1.3;
}

.section-description {
    font-size: var(--font-size-lg);
    color: #ffffff;
    font-weight: 400;
    line-height: 1.75;
    max-width: 700px;
    margin: 0 auto;
    margin-bottom: var(--spacing-2);
}

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

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.hidden {
    display: none;
}

.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;
}