/* ===== ROOT VARIABLES ===== */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --accent-primary: #0ea5e9;
    --accent-secondary: #3b82f6;
    --text-primary: #e5e7eb;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border: #475569;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow: 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);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* ===== NAVBAR ===== */
.navbar {
    background-color: var(--bg-secondary);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.logo-mark {
    height: 32px;
    width: 32px;
    display: inline-block;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--accent-primary);
    border-radius: 2px;
}

.request-btn {
    background-color: var(--accent-primary);
    color: white !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: var(--radius-sm);
}

.request-btn:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-1px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    inset: -20% -10%;
    background: radial-gradient(40% 30% at 20% 20%, rgba(14,165,233,0.14), transparent),
                radial-gradient(35% 25% at 80% 30%, rgba(59,130,246,0.14), transparent),
                radial-gradient(30% 30% at 50% 80%, rgba(14,165,233,0.10), transparent);
    filter: blur(50px);
    opacity: 0.8;
    animation: fluidGlow 14s ease-in-out infinite alternate;
    z-index: 0;
}

@keyframes fluidGlow {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
        opacity: 0.75;
    }
    50% {
        transform: translate3d(1%, -2%, 0) scale(1.05);
        opacity: 0.9;
    }
    100% {
        transform: translate3d(-1%, 2%, 0) scale(1.08);
        opacity: 0.8;
    }
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-search {
    margin-bottom: 3rem;
}

.search-box {
    display: flex;
    max-width: 700px;
    margin: 0 auto 1rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.search-box input {
    flex: 1;
    padding: 1.25rem 1.5rem;
    border: none;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1.1rem;
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

.search-box button {
    padding: 0 2.5rem;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background-color: var(--accent-secondary);
}

.search-tags {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.5rem 1rem;
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    background-color: rgba(14, 165, 233, 0.2);
    transform: translateY(-1px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== CATEGORIES ===== */
.categories {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
}

.category-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.category-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== FEATURED TOOLS ===== */
.featured-tools {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.view-all {
    color: var(--accent-primary);
    font-weight: 500;
}

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

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.tool-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.tool-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.tool-card h3 {
    margin-bottom: 0.5rem;
}

.tool-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--accent-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.tool-platforms {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.platform-tag {
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 0.75rem;
}

.download-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 500;
    width: 100%;
    text-align: center;
    margin-top: 1rem;
}

.download-btn:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-1px);
}

/* ===== LATEST GUIDES ===== */
.latest-guides {
    padding: 5rem 0;
}

.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.guide-card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.guide-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.guide-image {
    height: 200px;
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-primary);
}

.guide-content {
    padding: 1.5rem;
}

.guide-title {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.guide-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.read-more {
    color: var(--accent-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

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

/* ===== SHARED UTILITIES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.85rem 1.4rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    border-color: var(--accent-primary);
    color: white;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn.primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-color: rgba(14,165,233,0.5);
}

.btn.ghost {
    background: transparent;
    color: var(--text-secondary);
}

.inline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    border: 1px solid var(--border);
}

.notice {
    background: rgba(14, 165, 233, 0.08);
    border: 1px dashed rgba(14, 165, 233, 0.4);
    color: var(--text-primary);
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    margin: 1rem 0;
}

.tools-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin: 2rem 0;
}

.category-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin: 1rem 0 2rem;
}

.category-btn {
    padding: 0.5rem 1.5rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.category-btn:hover,
.category-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.tool-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tool-difficulty,
.tool-license {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 6px;
    border: 1px solid var(--border);
}

/* ===== CONTACT / REQUEST LAYOUTS ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.contact-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    box-shadow: var(--shadow);
}

.contact-card.alt {
    background: var(--bg-secondary);
}

.stacked-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.stacked-form input,
.stacked-form select,
.stacked-form textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.9rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 1rem;
}

.stacked-form textarea {
    resize: vertical;
    min-height: 140px;
}

.status-text {
    color: var(--accent-primary);
    font-size: 0.95rem;
    min-height: 1.2rem;
}

.contact-list {
    list-style: none;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.contact-list li {
    margin-bottom: 0.5rem;
}

.checklist {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.checklist li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.checklist li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.mini-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.mini-panel {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
}

.mini-title {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.mini-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* ===== ELEVATED SECTIONS ===== */
.panel {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

.glass {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.card-gradient {
    background: linear-gradient(145deg, rgba(14,165,233,0.08), rgba(59,130,246,0.05));
    border: 1px solid rgba(14,165,233,0.15);
    box-shadow: var(--shadow-lg);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgba(14,165,233,0.12);
    color: var(--accent-primary);
    font-size: 0.85rem;
    border: 1px solid rgba(14,165,233,0.2);
}

.skeleton {
    position: relative;
    overflow: hidden;
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-sm);
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===== FLUID BACKGROUNDS (iPhone-like blobs) ===== */
.has-fluid {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.fluid-blob {
    position: absolute;
    inset: -30%;
    pointer-events: none;
    filter: blur(80px);
    opacity: 0.55;
    z-index: 0;
}

.fluid-blob span {
    position: absolute;
    width: 40vmin;
    height: 40vmin;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(14,165,233,0.55), transparent 60%);
    animation: fluidDrift 18s ease-in-out infinite;
    mix-blend-mode: screen;
}

.fluid-blob span:nth-child(2) {
    top: 20%;
    left: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(59,130,246,0.45), transparent 60%);
    animation-duration: 20s;
    animation-delay: -4s;
}

.fluid-blob span:nth-child(3) {
    top: 55%;
    left: 25%;
    background: radial-gradient(circle at 30% 30%, rgba(16,185,129,0.35), transparent 60%);
    animation-duration: 22s;
    animation-delay: -8s;
}

.fluid-blob span:nth-child(4) {
    top: 50%;
    left: 65%;
    background: radial-gradient(circle at 30% 30%, rgba(236,72,153,0.25), transparent 60%);
    animation-duration: 24s;
    animation-delay: -12s;
}

@keyframes fluidDrift {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    33%  { transform: translate3d(6%, -4%, 0) scale(1.05); }
    66%  { transform: translate3d(-4%, 5%, 0) scale(0.98); }
    100% { transform: translate3d(2%, -2%, 0) scale(1.02); }
}
/* ===== CTA BANNER ===== */
.cta-banner {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    text-align: center;
    color: white;
}

.cta-banner h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-banner p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: white;
    color: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* ===== FOOTER ===== */
footer {
    padding: 4rem 0 2rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.footer-col a:hover {
    color: var(--accent-primary);
}

.footer-tagline {
    color: var(--text-secondary);
    margin: 1rem 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.footer-note {
    margin-top: 0.5rem;
    font-style: italic;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }
    
    .tools-grid,
    .guides-grid {
        grid-template-columns: 1fr;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input,
    .search-box button {
        width: 100%;
    }
    
    .search-box button {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}