:root {
    --primary: #712cf9;
    --primary-dark: #6922f7;
    --secondary: #2196F3;
    --dark: #1a2a3a;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Navbar */
.navbar {
    background: rgba(26, 42, 58, 0.95);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary) !important;
}

.nav-link {
    color: var(--bs-body-color) !important;
    font-weight: 500;
    transition: 0.3s;
}

.nav-link:hover {
    color: var(--primary) !important;
}

.min-vh-75 {
    min-height: 75vh;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: white;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.hero .btn-primary {
    background: var(--primary);
    border: none;
    padding: 12px 32px;
    font-weight: 600;
    transition: transform 0.3s;
}

.hero .btn-primary:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

/* Feature cards */
.feature-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Steps */
.step-circle {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(120deg, #1e2a3a, #0f2027);
    color: white;
    padding: 80px 0;
}

/* Animation delay classes */
.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

/* scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    color: var(--bs-secondary-color);
    transition: background 0.15s, color 0.15s;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
    font-weight: 500;
}

.sidebar-link .bi {
    font-size: 17px;
}

.hover-show {
    display: none;
}

a:hover .hover-show {
    display: block;
}

.hover-underline {
    text-decoration: none;
}

.hover-underline:hover {
    text-decoration: underline;
}

/* Collapse labels on small screens: show icons only and pin profile button */
@media (max-width: 768px) {

    /* Hide link text to prioritize icons */
    .sidebar-link span {
        display: none;
    }

    /* Narrow sidebar column to icon-only width */
    .col-auto>div {
        width: 56px !important;
        padding: 8px !important;
    }

    /* Center icons inside links */
    .sidebar-link {
        justify-content: center;
        padding: 10px 0;
    }

    /* Make icons slightly larger for touch targets */
    .sidebar-link .bi {
        font-size: 20px;
    }

    /* Ensure hover dropdowns don't overflow the small sidebar */
    .hover-show {
        display: none !important;
    }

    /* Keep profile section at bottom inside sidebar */
    .mt-auto.border-top {
        padding: 8px 0;
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        margin-top: auto;
        width: 100%;
    }

    .mt-auto.border-top .sidebar-link {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 0;
        padding: 4px 0;
    }

    /* Hide the username while keeping the avatar visible */
    .mt-auto.border-top .text-truncate {
        display: none;
    }

    .mt-auto.border-top .btn {
        width: 44px;
        height: 44px;
        padding: 0;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    /* Hide dropdown on small screens */
    .mt-auto .dropdown {
        display: none;
    }

    /* Ensure main content gets full width */
    main {
        margin-left: 0 !important;
    }
}


.post-content img { max-width: 100%; border-radius: 8px; margin: 1rem 0; }
.post-content h1, .post-content h2, .post-content h3 { font-weight: 500; margin: 1.5rem 0 .5rem; }
.post-content blockquote { border-left: 3px solid #dee2e6; padding-left: 1rem; color: #6c757d; }
.post-content pre { background: #f8f9fa; border-radius: 6px; padding: 1rem; overflow-x: auto; }
.post-content code { font-size: 13px; }
/* ================= POST IMAGES ================= */

/* List card thumbnails: fixed aspect ratio container so images never squish */
.post-card { overflow: hidden; }
.post-thumb-wrap {
    position: relative;
    width: 100%;
    /* 4:3 aspect ratio - prevents squishing */
    aspect-ratio: 4 / 3;
    background: #f8f9fa;
    overflow: hidden;
}
.post-thumb-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}
.post-thumb-empty {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Show page hero: never squish; max width responsive */
.post-hero-wrap {
    width: 100%;
    /* 16:9-ish ratio for hero */
    aspect-ratio: 16 / 9;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}
.post-hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}
@media (max-width: 768px) {
    .post-hero-wrap {
        aspect-ratio: 4 / 3;
        border-radius: 8px;
    }
}

/* ================= POST CARDS (list) ================= */
.post-card-link {
    display: block;
    color: inherit;
    transition: transform 0.15s ease;
}
.post-card-link:hover {
    text-decoration: none;
    color: inherit;
    transform: translateY(-2px);
}
.post-card-link .card {
    transition: box-shadow 0.15s ease;
}
.post-card-link:hover .card {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.12) !important;
}
.post-author-link {
    cursor: pointer;
}
.post-author-link:hover {
    text-decoration: none;
    color: var(--primary) !important;
}
.post-author-avatar {
    width: 28px;
    height: 28px;
    font-size: 12px;
    flex-shrink: 0;
}

/* ================= FULL-SCREEN SEARCH OVERLAY ================= */
.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-overlay-inner {
    width: 100%;
    max-width: 640px;
    padding: 0 16px;
    position: relative;
}

.search-overlay-close {
    position: fixed;
    top: 20px;
    right: 24px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s, background 0.2s;
    line-height: 1;
    padding: 8px 12px;
    border-radius: 8px;
    z-index: 2001;
}

.search-overlay-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.25);
}

.search-overlay-close:hover {
    opacity: 1;
}

.search-overlay-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-overlay-icon {
    position: absolute;
    left: 16px;
    font-size: 1.25rem;
    color: #999;
    pointer-events: none;
}

.search-overlay-input {
    width: 100%;
    padding: 16px 20px 16px 48px;
    font-size: 1.25rem;
    border: none;
    border-radius: 12px;
    background: #fff;
    color: #212529;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    outline: none;
}

.search-overlay-input::placeholder {
    color: #aaa;
}

.search-overlay-results {
    margin-top: 8px;
    max-height: 50vh;
    overflow-y: auto;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    display: none;
}

.search-overlay-results .dropdown-menu {
    border-radius: 12px;
}

.search-overlay-results .dropdown-item {
    padding: 12px 20px;
    color: #212529;
    text-decoration: none;
    transition: background 0.15s;
}

.search-overlay-results .dropdown-item:hover {
    background: #f0f0f0;
    color: #212529;
}

.search-overlay-results.has-results {
    display: block;
}

/* Highlighted match in search results */
.search-highlight {
    background-color: #fff3cd;
    color: #856404;
    padding: 1px 3px;
    border-radius: 3px;
    font-weight: 600;
}