/* ══════════════════════════════════════════════════
   ITSTAR Blog – Design System (site.css)
   Matches: asset-manager--akzitstar.replit.app
   Theme  : Light mode · Plus Jakarta Sans + Lora
   ══════════════════════════════════════════════════ */

/* ── Google Fonts are loaded in _Layout.cshtml ─── */

/* ── HSL Design Tokens (Shadcn/Radix-style) ─────── */
:root {
    /* Base palette */
    --background:   0 0% 100%;
    --foreground:   224 71% 4%;

    --card:         0 0% 100%;
    --card-foreground: 224 71% 4%;

    --popover:      0 0% 100%;
    --popover-foreground: 224 71% 4%;

    /* Primary – warm indigo from reference */
    --primary:      243 75% 59%;       /* #5B5BD6 */
    --primary-foreground: 0 0% 100%;

    --secondary:    220 14% 96%;
    --secondary-foreground: 220 9% 46%;

    --muted:        220 14% 96%;
    --muted-foreground: 220 9% 46%;

    --accent:       220 14% 96%;
    --accent-foreground: 220 9% 15%;

    --destructive:  0 84% 60%;
    --destructive-foreground: 0 0% 100%;

    --border:       220 13% 91%;
    --input:        220 13% 91%;
    --ring:         243 75% 59%;

    /* Sidebar */
    --sidebar:              0 0% 98%;
    --sidebar-border:       220 13% 91%;
    --sidebar-foreground:   240 5% 26%;

    /* Custom semantic */
    --radius: 0.625rem;

    /* ── Mapped shorthand vars (used in custom classes below) */
    --color-bg:           hsl(var(--background));
    --color-bg-elevated:  hsl(220 14% 96%);
    --color-bg-card:      hsl(var(--card));
    --color-border:       hsl(var(--border));
    --color-border-soft:  hsl(220 13% 91% / 0.7);

    --color-accent:       hsl(var(--primary));
    --color-accent-hover: hsl(243 75% 50%);
    --color-accent-glow:  hsl(243 75% 59% / 0.12);
    --color-accent-2:     hsl(330 80% 56%);   /* pink for writer badge */

    --color-text:         hsl(var(--foreground));
    --color-text-muted:   hsl(var(--muted-foreground));
    --color-text-dim:     hsl(220 9% 65%);
    --color-white:        #FFFFFF;

    --color-success:      hsl(142 71% 45%);
    --color-warning:      hsl(38 92% 50%);
    --color-danger:       hsl(var(--destructive));
    --color-info:         hsl(200 98% 39%);

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

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border radius (Shadcn-style derived from --radius) */
    --radius-sm:   calc(var(--radius) - 4px);
    --radius-md:   calc(var(--radius) - 2px);
    --radius-lg:   var(--radius);
    --radius-xl:   calc(var(--radius) + 4px);
    --radius-2xl:  1rem;
    --radius-full: 9999px;

    /* Shadows – subtle for light theme */
    --shadow-sm:   0 1px 2px hsl(220 13% 0% / 0.05);
    --shadow-md:   0 4px 12px hsl(220 13% 0% / 0.08);
    --shadow-lg:   0 8px 30px hsl(220 13% 0% / 0.10);
    --shadow-ring: 0 0 0 3px hsl(var(--ring) / 0.2);

    /* Transitions */
    --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --navbar-height: 64px;
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar – light, minimal */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: hsl(220 14% 96%); }
::-webkit-scrollbar-thumb { background: hsl(var(--border)); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: hsl(var(--primary) / 0.6); }

/* ── Container ────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

/* ── Typography ──────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.025em;
    color: var(--color-text);
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-hover); }
p { color: var(--color-text); }
img { display: block; max-width: 100%; }

code, kbd, samp, pre {
    font-family: var(--font-mono);
}

/* ── Utility text helpers ────────────────────────── */
.text-muted  { color: var(--color-text-muted); }
.text-dim    { color: var(--color-text-dim); }
.text-accent { color: var(--color-accent); }

/* ── Buttons ─────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.5;
}

.btn-primary {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-color: hsl(var(--primary));
}
.btn-primary:hover {
    background: hsl(243 75% 52%);
    border-color: hsl(243 75% 52%);
    color: hsl(var(--primary-foreground));
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border-color: var(--color-border);
}
.btn-ghost:hover {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border-color: hsl(var(--border));
}

.btn-danger {
    background: hsl(var(--destructive));
    color: hsl(var(--destructive-foreground));
    border-color: hsl(var(--destructive));
}
.btn-danger:hover {
    background: hsl(0 84% 52%);
    color: white;
}

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.65rem 1.5rem; font-size: 1rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Cards ───────────────────────────────────────── */
.card {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.card:hover {
    border-color: hsl(var(--border));
    box-shadow: var(--shadow-md);
}

/* ── Badges & Pills ──────────────────────────────── */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: 1px solid transparent;
}
.badge-accent   { background: hsl(var(--primary) / 0.08); color: hsl(var(--primary)); border-color: hsl(var(--primary) / 0.2); }
.badge-success  { background: hsl(142 71% 45% / 0.1); color: hsl(142 71% 38%); border-color: hsl(142 71% 45% / 0.25); }
.badge-warning  { background: hsl(38 92% 50% / 0.1); color: hsl(38 92% 38%); border-color: hsl(38 92% 50% / 0.25); }
.badge-muted    { background: hsl(var(--muted)); color: var(--color-text-muted); border-color: hsl(var(--border)); }
.badge-writer   { background: hsl(330 80% 56% / 0.1); color: hsl(330 80% 45%); border-color: hsl(330 80% 56% / 0.25); }
.badge-reader   { background: hsl(200 98% 39% / 0.1); color: hsl(200 98% 30%); border-color: hsl(200 98% 39% / 0.25); }

.tag-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    background: hsl(var(--muted));
    color: var(--color-text-muted);
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: default;
}
.tag-pill:hover, .tag-pill.active {
    background: hsl(var(--primary) / 0.1);
    color: hsl(var(--primary));
    border-color: hsl(var(--primary) / 0.3);
}

/* ── Form Elements ───────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: 0.55rem 0.875rem;
    background: hsl(var(--background));
    border: 1px solid hsl(var(--input));
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    outline: none;
}
.form-control:focus {
    border-color: hsl(var(--ring));
    box-shadow: var(--shadow-ring);
}
.form-control::placeholder { color: var(--color-text-dim); }

select.form-control option {
    background: hsl(var(--background));
    color: var(--color-text);
}

textarea.form-control { resize: vertical; min-height: 100px; }

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: var(--space-6);
    border: 1px solid;
}
.alert-error   { background: hsl(0 84% 60% / 0.08); color: hsl(0 72% 45%); border-color: hsl(0 84% 60% / 0.25); }
.alert-success { background: hsl(142 71% 45% / 0.08); color: hsl(142 71% 32%); border-color: hsl(142 71% 45% / 0.25); }

/* ── NAVBAR ──────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: hsl(var(--background) / 0.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid hsl(var(--border));
}

.navbar { width: 100%; }

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
    gap: var(--space-6);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    flex-shrink: 0;
}
.brand-icon {
    font-size: 1.2rem;
    color: hsl(var(--primary));
}
.brand-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}
.brand-accent { color: hsl(var(--primary)); }

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0.4rem 0.75rem;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}
.nav-link:hover {
    color: var(--color-text);
    background: hsl(var(--muted));
}

.nav-link--new-post {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground)) !important;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-md);
}
.nav-link--new-post:hover {
    background: hsl(243 75% 52%);
    color: white !important;
}

.nav-icon { width: 15px; height: 15px; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* User menu */
.user-menu { position: relative; }

.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: transparent;
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius-full);
    padding: 0.25rem 0.65rem 0.25rem 0.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-muted);
}
.user-avatar-btn:hover {
    border-color: hsl(var(--primary) / 0.5);
    background: hsl(var(--muted));
    color: var(--color-text);
}

.avatar-ring {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: hsl(var(--primary));
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.avatar-initials { font-size: 0.72rem; font-weight: 700; color: white; }
.user-name-sm { font-size: 0.8rem; font-weight: 500; color: var(--color-text); }

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: hsl(var(--popover));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all var(--transition-normal);
    z-index: 100;
}
.user-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }

.dropdown-header { padding: var(--space-2) var(--space-2) var(--space-3); }
.dropdown-name { font-weight: 600; color: var(--color-text); margin-bottom: var(--space-1); font-size: 0.9rem; }
.dropdown-divider { border: none; border-top: 1px solid hsl(var(--border)); margin: var(--space-1) 0; }

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-2);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}
.dropdown-item:hover { background: hsl(var(--muted)); color: var(--color-text); }
.dropdown-item--danger { color: hsl(var(--destructive)); }
.dropdown-item--danger:hover { background: hsl(var(--destructive) / 0.08); color: hsl(var(--destructive)); }

/* User level badge */
.user-level-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.user-level-badge--writer { background: hsl(330 80% 56% / 0.1); color: hsl(330 80% 45%); border: 1px solid hsl(330 80% 56% / 0.25); }
.user-level-badge--reader { background: hsl(200 98% 39% / 0.1); color: hsl(200 98% 30%); border: 1px solid hsl(200 98% 39% / 0.25); }

/* Hamburger */
.hamburger {
    display: none;
    background: transparent;
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.4rem;
}

/* Mobile Nav */
.mobile-nav {
    display: none;
    flex-direction: column;
    background: hsl(var(--background));
    border-top: 1px solid hsl(var(--border));
    padding: var(--space-3) var(--space-4);
    gap: var(--space-1);
}
.mobile-nav.open { display: flex; }
.mobile-nav-link {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}
.mobile-nav-link:hover { background: hsl(var(--muted)); color: var(--color-text); }

/* ── MAIN & FOOTER ───────────────────────────────── */
.site-main { flex: 1; }

.site-footer {
    background: hsl(var(--background));
    border-top: 1px solid hsl(var(--border));
    padding: var(--space-8) 0;
    margin-top: var(--space-16);
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: var(--space-2); }
.footer-copy { color: var(--color-text-dim); font-size: 0.825rem; }
.footer-link { color: var(--color-text-dim); font-size: 0.825rem; }
.footer-link:hover { color: hsl(var(--primary)); }

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: block; }
    .btn-ghost { display: none; }
    .user-name-sm { display: none; }
    .footer-inner { flex-direction: column; text-align: center; }
}

/* ── ERROR BANNER ─────────────────────────────────── */
.error-banner {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.15), rgba(185, 28, 28, 0.08));
    border: 1px solid rgba(220, 38, 38, 0.4);
    border-left: 4px solid #ef4444;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    animation: bannerSlideIn 0.35s ease-out;
}

@keyframes bannerSlideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.error-banner-inner {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.error-banner-icon {
    font-size: 1.4rem;
    color: #f87171;
    flex-shrink: 0;
    margin-top: 2px;
}

.error-banner-body {
    flex: 1;
    min-width: 0;
}

.error-banner-title {
    display: block;
    color: #fca5a5;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.error-banner-details {
    color: #fecaca;
    font-size: 0.8rem;
}

.error-banner-details summary {
    cursor: pointer;
    user-select: none;
    color: #f87171;
    font-weight: 500;
    margin-bottom: 0.5rem;
    list-style: none;
}

.error-banner-details summary::-webkit-details-marker { display: none; }

.error-banner-details summary::before {
    content: "▶ ";
    font-size: 0.7rem;
    transition: transform 0.2s;
    display: inline-block;
}

.error-banner-details[open] summary::before {
    transform: rotate(90deg);
}

.error-banner-pre {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(220, 38, 38, 0.25);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin: 0.25rem 0 0;
    font-family: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.75rem;
    line-height: 1.55;
    color: #fecaca;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 260px;
    overflow-y: auto;
}

.error-banner-close {
    background: none;
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #f87171;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.8rem;
    flex-shrink: 0;
    transition: background 0.2s, color 0.2s;
}

.error-banner-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}