/* ==========================================================================
   Neximux - Main CSS
   Design System - Light Mode Premium
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Backgrounds */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F7FA;
    --bg-card: #FFFFFF;
    --bg-elevated: #EEF1F7;
    --bg-glass: rgba(255, 255, 255, 0.92);

    /* Brand Colors */
    --brand-blue: #0066ff;
    --brand-blue-light: #4d94ff;
    --brand-blue-dark: #0052cc;
    --brand-blue-muted: rgba(0, 102, 255, 0.15);
    --brand-navy: #001a4d;
    --brand-red: #cc0000;
    --brand-red-light: #e60000;
    --brand-red-muted: rgba(204, 0, 0, 0.12);

    /* Text Colors */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #8888aa;
    --text-accent: var(--brand-blue);

    /* Borders */
    --border-subtle: rgba(0, 0, 0, 0.06);
    --border-light: rgba(0, 0, 0, 0.10);
    --border-accent: rgba(0, 102, 255, 0.25);
    --border-line: rgba(0, 102, 255, 0.05);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #4d94ff 100%);
    --gradient-accent: linear-gradient(135deg, #cc0000 0%, #e60000 100%);
    --gradient-hero: linear-gradient(145deg, #ffffff 0%, #f8faff 60%, #f0f4ff 100%);
    --gradient-text: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-red) 100%);
    --gradient-border: linear-gradient(135deg, var(--brand-blue), var(--brand-red));

    /* Shadows — softer for light backgrounds */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.12);
    --glow-blue: 0 0 20px rgba(0, 102, 255, 0.18);
    --glow-blue-intense: 0 0 40px rgba(0, 102, 255, 0.28);
    --glow-red: 0 0 20px rgba(204, 0, 0, 0.15);

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Font Sizes - Fluid */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 1.8rem + 3.5vw, 4rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-section: clamp(4rem, 8vw, 8rem);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* --------------------------------------------------------------------------
   CSS Reset & Base Styles
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); letter-spacing: -0.03em; }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
    margin-bottom: var(--space-lg);
    color: var(--text-secondary);
}

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

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

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section {
    padding: var(--space-section) 0;
    position: relative;
}

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

/* --------------------------------------------------------------------------
   Text Effects
   -------------------------------------------------------------------------- */
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.text-glow {
    text-shadow: 0 0 20px rgba(0, 85, 255, 0.5);
}

/* --------------------------------------------------------------------------
   Background Patterns
   -------------------------------------------------------------------------- */
.bg-grid {
    background-image:
        linear-gradient(rgba(0, 85, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 85, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.bg-dots {
    background-image: radial-gradient(
        circle at center,
        rgba(0, 85, 255, 0.1) 1px,
        transparent 1px
    );
    background-size: 30px 30px;
}

.bg-diagonal {
    background-image: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 20px,
        rgba(0, 85, 255, 0.02) 20px,
        rgba(0, 85, 255, 0.02) 21px
    );
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: var(--shadow-md), var(--glow-blue);
    /* Diagonal cut bottom-right corner */
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--glow-blue-intense);
}

.btn-primary:active {
    transform: translateY(0);
    transition-duration: 0.1s;
}

.btn-outline {
    background: transparent;
    color: var(--brand-blue);
    border: 2px solid var(--brand-blue);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--brand-blue);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: var(--glow-blue);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-lg), var(--glow-blue);
    transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
.input,
.textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.input:focus,
.textarea:focus {
    outline: none;
    border-color: var(--brand-blue);
    box-shadow: var(--glow-blue);
}

.input::placeholder,
.textarea::placeholder {
    color: var(--text-muted);
}

.textarea {
    min-height: 150px;
    resize: vertical;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    .section {
        padding: var(--space-3xl) 0;
    }
}