/**
 * AiLydian HUMAIN.ai Inspired Design System
 * Ultra Modern AI Platform with ChatGPT Typography & Asana Colors
 */

/* ========== HUMAIN.AI INSPIRED ROOT VARIABLES ========== */
:root {
    /* === HUMAIN.AI + ASANA COLOR PALETTE === */
    --humain-primary: #0f1419;
    --humain-secondary: #1a1f26;
    --humain-accent: #00d9ff;
    --humain-success: #00c851;
    --humain-warning: #ffae42;
    --humain-error: #ff4444;
    --humain-info: #33b5e5;

    /* === ASANA WHITE + GREEN THEME === */
    --asana-white: #ffffff;
    --asana-off-white: #fafbfc;
    --asana-light-gray: #f6f7f8;
    --asana-medium-gray: #e8eaed;
    --asana-text-primary: #1d2129;
    --asana-text-secondary: #626f86;
    --asana-text-muted: #9ca6af;

    /* Asana Green Palette */
    --asana-green-primary: #0d7377;
    --asana-green-light: #14a085;
    --asana-green-lighter: #7fb069;
    --asana-green-accent: #a7c957;
    --asana-green-soft: #c5e8b7;
    --asana-green-ghost: #f0f9f0;

    /* === AILYDIAN ORANGE ACCENT PALETTE === */
    --ailydian-orange-primary: #ff7300;
    --ailydian-orange-light: #ff8533;
    --ailydian-orange-dark: #e65f00;
    --ailydian-orange-glow: #ff9966;
    --ailydian-orange-soft: #ffedcc;
    --ailydian-orange-ghost: #fff8f0;

    /* === CHATGPT TYPOGRAPHY SYSTEM === */
    --font-chatgpt: 'Righteous', cursive;
    --font-mono: "SF Mono", Monaco, Inconsolata, "Roboto Mono", "Source Code Pro", monospace;
    --font-display: 'Righteous', cursive;

    /* Font Weights - ChatGPT Style */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-heavy: 800;

    /* Font Sizes - Responsive Scale */
    --text-xs: 0.75rem;     /* 12px */
    --text-sm: 0.875rem;    /* 14px */
    --text-base: 1rem;      /* 16px */
    --text-lg: 1.125rem;    /* 18px */
    --text-xl: 1.25rem;     /* 20px */
    --text-2xl: 1.5rem;     /* 24px */
    --text-3xl: 1.875rem;   /* 30px */
    --text-4xl: 2.25rem;    /* 36px */
    --text-5xl: 3rem;       /* 48px */
    --text-6xl: 3.75rem;    /* 60px */
    --text-7xl: 4.5rem;     /* 72px */
    --text-8xl: 6rem;       /* 96px */
    --text-9xl: 8rem;       /* 128px */

    /* === SPACING SYSTEM === */
    --space-px: 1px;
    --space-0: 0;
    --space-1: 0.25rem;     /* 4px */
    --space-2: 0.5rem;      /* 8px */
    --space-3: 0.75rem;     /* 12px */
    --space-4: 1rem;        /* 16px */
    --space-5: 1.25rem;     /* 20px */
    --space-6: 1.5rem;      /* 24px */
    --space-8: 2rem;        /* 32px */
    --space-10: 2.5rem;     /* 40px */
    --space-12: 3rem;       /* 48px */
    --space-16: 4rem;       /* 64px */
    --space-20: 5rem;       /* 80px */
    --space-24: 6rem;       /* 96px */
    --space-32: 8rem;       /* 128px */

    /* === BORDER RADIUS === */
    --radius-none: 0;
    --radius-sm: 0.125rem;   /* 2px */
    --radius: 0.25rem;       /* 4px */
    --radius-md: 0.375rem;   /* 6px */
    --radius-lg: 0.5rem;     /* 8px */
    --radius-xl: 0.75rem;    /* 12px */
    --radius-2xl: 1rem;      /* 16px */
    --radius-3xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* === SHADOWS - MODERN ELEVATION === */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* === GRADIENTS - ASANA INSPIRED === */
    --gradient-primary: linear-gradient(135deg, var(--asana-green-primary) 0%, var(--asana-green-light) 100%);
    --gradient-soft: linear-gradient(135deg, var(--asana-green-soft) 0%, var(--asana-green-ghost) 100%);
    --gradient-accent: linear-gradient(135deg, var(--asana-green-accent) 0%, var(--asana-green-lighter) 100%);
    --gradient-background: linear-gradient(180deg, var(--asana-white) 0%, var(--asana-off-white) 100%);

    /* Orange Accent Gradients */
    --gradient-orange: linear-gradient(135deg, var(--ailydian-orange-dark) 0%, var(--ailydian-orange-primary) 50%, var(--ailydian-orange-light) 100%);
    --gradient-orange-soft: linear-gradient(135deg, var(--ailydian-orange-soft) 0%, var(--ailydian-orange-ghost) 100%);
    --gradient-mixed: linear-gradient(135deg, var(--asana-green-primary) 0%, var(--ailydian-orange-primary) 100%);

    /* === ANIMATIONS & TRANSITIONS === */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* === Z-INDEX SCALE === */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
}

body {
    font-family: var(--font-chatgpt);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--asana-text-primary);
    background: var(--asana-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* ========== HUMAIN.AI INSPIRED LAYOUT ========== */
.humain-container {
    min-height: 100vh;
    background: var(--gradient-background);
    position: relative;
    overflow-x: hidden;
}

/* Animated Background Dots - Asana Style */
.floating-dots {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-dots::before,
.floating-dots::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: var(--asana-green-soft);
    opacity: 0.3;
    animation: floatAnimation 20s infinite ease-in-out;
}

.floating-dots::before {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
    background: radial-gradient(circle, var(--asana-green-ghost) 0%, transparent 70%);
}

.floating-dots::after {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 10%;
    animation-delay: 10s;
    background: radial-gradient(circle, var(--asana-green-soft) 0%, transparent 70%);
}

/* Additional floating elements */
.floating-dots-extra {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-dots-extra::before {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    top: 30%;
    right: 20%;
    border-radius: 50%;
    background: radial-gradient(circle, var(--asana-green-lighter) 0%, transparent 60%);
    opacity: 0.2;
    animation: floatAnimation 15s infinite ease-in-out reverse;
}

.floating-dots-extra::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    border-radius: 50%;
    background: radial-gradient(circle, var(--asana-green-accent) 0%, transparent 50%);
    opacity: 0.25;
    animation: floatAnimation 25s infinite ease-in-out;
    animation-delay: 5s;
}

@keyframes floatAnimation {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(20px, -30px) scale(1.1);
        opacity: 0.4;
    }
    50% {
        transform: translate(-15px, 20px) scale(0.9);
        opacity: 0.2;
    }
    75% {
        transform: translate(30px, 10px) scale(1.05);
        opacity: 0.35;
    }
}

/* ========== HUMAIN.AI HEADER STYLE ========== */
.humain-header {
    position: relative;
    z-index: 10;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--asana-medium-gray);
    padding: var(--space-4) var(--space-6);
}

.humain-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

/* AiLydian Logo - HUMAIN.ai Style */
.ailydian-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--asana-text-primary);
}

.ailydian-logo-text {
    font-family: 'Righteous', cursive !important;
    font-size: var(--text-2xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.ailydian-logo-text .letter-a {
    color: var(--asana-green-primary);
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-heavy);
    margin-right: -2px;
}

.ailydian-logo-text .letter-l {
    color: var(--asana-green-light);
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-heavy);
    margin-right: -1px;
}

.ailydian-beta {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: var(--space-2);
    vertical-align: top;
    margin-top: var(--space-1);
}

/* Navigation Menu */
.humain-nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
}

.humain-nav-item {
    position: relative;
}

.humain-nav-link {
    font-family: var(--font-chatgpt);
    font-size: var(--text-base);
    font-weight: var(--font-weight-medium);
    color: var(--asana-text-secondary);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.humain-nav-link:hover {
    color: var(--asana-green-primary);
    background: var(--asana-green-ghost);
}

.humain-nav-link.active {
    color: var(--asana-green-primary);
    font-weight: var(--font-weight-semibold);
}

/* ========== HUMAIN.AI HERO SECTION ========== */
.humain-hero {
    position: relative;
    z-index: 5;
    text-align: center;
    padding: var(--space-32) var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
}

.humain-hero-title {
    font-family: 'Righteous', cursive !important;
    font-size: var(--text-9xl);
    font-weight: var(--font-weight-heavy);
    line-height: 0.9;
    letter-spacing: -0.04em;
    color: var(--asana-text-primary);
    margin-bottom: var(--space-8);
    text-transform: uppercase;
}

.humain-hero-title .letter-ai {
    color: var(--asana-green-primary);
    position: relative;
}

.humain-hero-title .letter-ai::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.humain-hero-subtitle {
    font-family: var(--font-chatgpt);
    font-size: var(--text-2xl);
    font-weight: var(--font-weight-medium);
    line-height: 1.4;
    color: var(--asana-text-primary);
    margin-bottom: var(--space-6);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.humain-hero-description {
    font-family: var(--font-chatgpt);
    font-size: var(--text-lg);
    color: var(--asana-text-secondary);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

/* ========== MODERN BUTTONS ========== */
.btn-humain {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-chatgpt);
    font-size: var(--text-base);
    font-weight: var(--font-weight-semibold);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-xl);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-humain-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-humain-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-humain-secondary {
    background: var(--asana-white);
    color: var(--asana-green-primary);
    border: 2px solid var(--asana-green-primary);
    box-shadow: var(--shadow);
}

.btn-humain-secondary:hover {
    background: var(--asana-green-ghost);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Orange Accent Buttons */
.btn-humain-orange {
    background: var(--gradient-orange);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-humain-orange:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(255, 115, 0, 0.4);
}

.btn-humain-orange-outline {
    background: white;
    color: var(--ailydian-orange-primary);
    border: 2px solid var(--ailydian-orange-primary);
}

.btn-humain-orange-outline:hover {
    background: var(--ailydian-orange-ghost);
    transform: translateY(-1px);
}

/* ========== CHAT INTERFACE - HUMAIN.AI STYLE ========== */
.humain-chat-container {
    position: relative;
    z-index: 10;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    backdrop-filter: blur(10px);
    border: 1px solid var(--asana-medium-gray);
}

.humain-chat-input {
    width: 100%;
    font-family: var(--font-chatgpt);
    font-size: var(--text-lg);
    padding: var(--space-5) var(--space-6);
    border: 2px solid var(--asana-medium-gray);
    border-radius: var(--radius-xl);
    background: var(--asana-white);
    color: var(--asana-text-primary);
    resize: none;
    outline: none;
    transition: all var(--transition-fast);
}

.humain-chat-input:focus {
    border-color: var(--asana-green-primary);
    box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.1);
}

.humain-chat-input::placeholder {
    color: var(--asana-text-muted);
    font-weight: var(--font-weight-normal);
}

/* ========== CAPABILITY CARDS ========== */
.humain-capabilities {
    position: relative;
    z-index: 5;
    padding: var(--space-24) var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
}

.humain-capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    margin-top: var(--space-16);
}

.humain-capability-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--asana-medium-gray);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.humain-capability-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--asana-green-primary);
}

.humain-capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.humain-capability-card:hover::before {
    opacity: 1;
}

.humain-capability-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--text-xl);
    margin-bottom: var(--space-6);
}

.humain-capability-title {
    font-family: 'Righteous', cursive !important;
    font-size: var(--text-xl);
    font-weight: var(--font-weight-bold);
    color: var(--asana-text-primary);
    margin-bottom: var(--space-3);
}

.humain-capability-description {
    font-family: var(--font-chatgpt);
    font-size: var(--text-base);
    color: var(--asana-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-6);
}

.humain-capability-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.humain-tag {
    font-family: var(--font-chatgpt);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    padding: var(--space-1) var(--space-3);
    background: var(--asana-green-ghost);
    color: var(--asana-green-primary);
    border-radius: var(--radius-full);
    border: 1px solid var(--asana-green-soft);
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
    .humain-hero-title {
        font-size: var(--text-6xl);
    }

    .humain-hero-subtitle {
        font-size: var(--text-xl);
    }

    .humain-nav-menu {
        gap: var(--space-4);
    }

    .humain-capabilities-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .floating-dots::before,
    .floating-dots::after,
    .floating-dots-extra::before,
    .floating-dots-extra::after {
        width: 100px !important;
        height: 100px !important;
    }
}

@media (max-width: 480px) {
    .humain-hero {
        padding: var(--space-20) var(--space-4);
    }

    .humain-hero-title {
        font-size: var(--text-5xl);
    }

    .ailydian-logo-text {
        font-size: var(--text-lg);
    }

    .ailydian-logo-text .letter-a {
        font-size: var(--text-xl);
    }
}

/* ========== UTILITY CLASSES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.font-heavy { font-weight: var(--font-weight-heavy); }

.hidden { display: none; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }