/* Soft Cloud Glassmorphism Theme for Blog */
/* Based on resume design with blog-specific enhancements */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Poppins:wght@600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* Color Palette - Soft Cloud */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f3a;
    --bg-tertiary: #2d1b3d;
    --bg-accent: #1f2937;

    /* Glass effect backgrounds */
    --glass-bg: rgba(30, 35, 60, 0.7);
    --glass-bg-light: rgba(45, 50, 75, 0.5);
    --glass-bg-card: rgba(40, 45, 70, 0.6);
    --glass-border: rgba(96, 165, 250, 0.2);

    /* Text colors */
    --text-primary: #e8edf5;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-heading: #f1f5f9;

    /* Accent colors */
    --primary: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-light: #93c5fd;
    --accent: #a78bfa;
    --accent-dark: #8b5cf6;
    --accent-light: #c4b5fd;

    /* Semantic colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    /* Borders & dividers */
    --border-subtle: rgba(148, 163, 184, 0.1);
    --border-medium: rgba(148, 163, 184, 0.2);
    --border-strong: rgba(148, 163, 184, 0.3);

    /* Shadows */
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 24px rgba(96, 165, 250, 0.3);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Poppins', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Font sizes */
    --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 */

    /* Spacing scale */
    --space-1: 0.25rem;     /* 4px */
    --space-2: 0.5rem;      /* 8px */
    --space-3: 0.75rem;     /* 12px */
    --space-4: 1rem;        /* 16px */
    --space-5: 1.5rem;      /* 24px */
    --space-6: 2rem;        /* 32px */
    --space-8: 3rem;        /* 48px */
    --space-10: 4rem;       /* 64px */
    --space-12: 6rem;       /* 96px */

    /* Border radius */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Z-index scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-popover: 500;
    --z-tooltip: 600;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
    min-height: 100%;
}

body {
    font-family: var(--font-sans) !important;
    background: linear-gradient(135deg,
        var(--bg-secondary) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-accent) 100%) !important;
    background-attachment: fixed !important;
    min-height: 100vh;
    color: var(--text-primary) !important;
    line-height: 1.6 !important;
    font-size: var(--text-base) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading) !important;
    font-weight: 700 !important;
    color: var(--text-heading) !important;
    line-height: 1.2 !important;
    margin-bottom: var(--space-4) !important;
}

h1 { font-size: var(--text-5xl) !important; }
h2 { font-size: var(--text-4xl) !important; }
h3 { font-size: var(--text-3xl) !important; }
h4 { font-size: var(--text-2xl) !important; }
h5 { font-size: var(--text-xl) !important; }
h6 { font-size: var(--text-lg) !important; }

p {
    margin-bottom: var(--space-4) !important;
    color: var(--text-secondary) !important;
}

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

a:hover {
    color: var(--primary-light) !important;
}

code {
    font-family: var(--font-mono) !important;
    background: rgba(96, 165, 250, 0.1) !important;
    padding: 0.125rem 0.375rem !important;
    border-radius: var(--radius-sm) !important;
    font-size: 0.9em !important;
    color: var(--primary-light) !important;
}

pre {
    background: var(--glass-bg-card) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: var(--radius-lg) !important;
    padding: var(--space-4) !important;
    overflow-x: auto !important;
    margin-bottom: var(--space-4) !important;
}

pre code {
    background: transparent !important;
    padding: 0 !important;
    color: var(--text-primary) !important;
}

/* ============================================
   GLASSMORPHISM COMPONENTS
   ============================================ */

.glass-card {
    background: var(--glass-bg-card);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(96, 165, 250, 0.4);
}

.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(60px);
    -webkit-backdrop-filter: blur(60px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
}

.glass-header {
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-bottom: 1px solid var(--border-subtle);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), 0 0 24px rgba(167, 139, 250, 0.3);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border-medium);
    color: var(--text-primary);
}

.btn-ghost:hover {
    background: var(--glass-bg-light);
    border-color: var(--primary);
}

/* ============================================
   TAGS & BADGES
   ============================================ */

.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: rgba(167, 139, 250, 0.15);
    border: 1px solid rgba(167, 139, 250, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--accent-light);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: rgba(167, 139, 250, 0.25);
    border-color: var(--accent);
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.25rem;
    height: 1.25rem;
    padding: 0 var(--space-2);
    background: var(--accent);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

/* ============================================
   UTILITIES
   ============================================ */

.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-accent { color: var(--accent) !important; }

.bg-glass { background: var(--glass-bg) !important; }
.bg-glass-card { background: var(--glass-bg-card) !important; }

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-md { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-2xl { border-radius: var(--radius-2xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--space-4) 0;
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-heading) !important;
    transition: all var(--transition-fast);
}

.logo:hover {
    color: var(--primary) !important;
    transform: translateY(-2px);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-lg);
    color: white;
}

.logo-icon svg {
    width: 20px;
    height: 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--text-secondary) !important;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-light) !important;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    z-index: var(--z-dropdown);
}

.mobile-menu-btn:hover {
    background: var(--glass-bg-card);
    border-color: var(--primary);
}

.mobile-menu-btn:active {
    transform: scale(0.95);
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    margin-top: var(--space-12);
    padding: var(--space-6);
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-text {
    color: var(--text-muted) !important;
    margin: 0 !important;
}

.social-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    list-style: none;
    margin: 0;
    padding: 0;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary) !important;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--glass-bg-card);
    border-color: var(--primary);
    color: var(--primary) !important;
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

@media (max-width: 768px) {
    :root {
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
    }

    html {
        min-height: 100%;
    }

    body {
        /* Fix for mobile browsers - use scroll instead of fixed */
        background-attachment: scroll !important;
        min-height: 100vh;
        /* Ensure background covers entire page on mobile */
        background-size: 100% 100%;
    }

    .glass-container {
        padding: var(--space-4);
    }

    /* Mobile Navigation */
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(40px);
        -webkit-backdrop-filter: blur(40px);
        border-bottom: 1px solid var(--border-subtle);
        padding: var(--space-4);
        transition: all var(--transition-base);
    }

    .nav-links.active {
        display: flex;
        max-height: 500px;
        opacity: 1;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--space-4);
        border-radius: var(--radius-md);
        transition: all var(--transition-fast);
    }

    .nav-links a:hover,
    .nav-links a.active {
        background: var(--glass-bg-light);
    }

    .nav-links a::after {
        display: none;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}