/* 
 * UGİ BİLİŞİM - Main Stylesheet
 * Vanilla CSS implementation with modern aesthetics (Tailwind-like utility classes built by hand for specific use-cases)
 */

 :root {
    --brand-purple: #8B5CF6;
    --brand-blue: #3B82F6;
    --brand-pink: #EC4899;
    --dark: #0f0f1a;
    --darker: #080811;
    --light: #f8fafc;
    --text-muted: #9ca3af;
}

/* Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

button, input, textarea {
    font-family: inherit;
}

/* Utilities */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

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

@media (min-width: 640px) { .container { max-width: 640px; } }
@media (min-width: 768px) { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1280px; } }

/* Modern Layout Helpers (Tailwind style) */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:hidden { display: none; }
    .md\:flex { display: flex; }
    .md\:text-5xl { font-size: 3rem; line-height: 1; }
    .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
    .md\:text-7xl { font-size: 4.5rem; line-height: 1; }
}
@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}


/* Spacing */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }
.mt-20 { margin-top: 5rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }

.pt-16 { padding-top: 4rem; }
.pt-32 { padding-top: 8rem; }
@media (min-width: 768px) { .md\:pt-48 { padding-top: 12rem; } }
.pb-20 { padding-bottom: 5rem; }
@media (min-width: 768px) { .md\:pb-32 { padding-bottom: 8rem; } }

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
@media (min-width: 1024px) { .lg\:p-12 { padding: 3rem; } }

/* Typography */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }

@media (max-width: 767px) {
    .text-2xl { font-size: 1.25rem; line-height: 1.75rem; }
    .text-3xl { font-size: 1.5rem; line-height: 2rem; }
    .text-4xl { font-size: 1.875rem; line-height: 2.25rem; }
    .text-5xl { font-size: 2.25rem; line-height: 2.5rem; }
}

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.leading-snug { line-height: 1.375; }
.leading-relaxed { line-height: 1.625; }
.leading-tight { line-height: 1.25; }

/* Colors & Backgrounds */
.bg-dark { background-color: var(--dark); }
.bg-darker { background-color: var(--darker); }
.bg-brand-purple { background-color: var(--brand-purple); }
.text-white { color: #fff; }
.text-gray-300 { color: #d1d5db; }
.text-gray-400 { color: var(--text-muted); }
.text-gray-500 { color: #6b7280; }
.text-brand-purple { color: var(--brand-purple); }
.text-brand-blue { color: var(--brand-blue); }
.text-brand-pink { color: var(--brand-pink); }
.text-red-400 { color: #f87171; }
.text-red-500 { color: #ef4444; }
.text-green-400 { color: #4ade80; }

.bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-brand-purple\/10 { background-color: rgba(139, 92, 246, 0.1); }
.bg-brand-purple\/20 { background-color: rgba(139, 92, 246, 0.2); }
.bg-brand-blue\/10 { background-color: rgba(59, 130, 246, 0.1); }
.bg-brand-blue\/20 { background-color: rgba(59, 130, 246, 0.2); }
.bg-red-500\/10 { background-color: rgba(239, 68, 68, 0.1); }
.bg-green-500\/10 { background-color: rgba(74, 222, 128, 0.1); }

.bg-gradient-brand {
    background: linear-gradient(135deg, var(--brand-purple), var(--brand-blue), var(--brand-pink));
}
.text-transparent { color: transparent; }
.bg-clip-text { -webkit-background-clip: text; background-clip: text; }

/* Borders & Radus */
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }

.border { border-width: 1px; border-style: solid; }
.border-t { border-top-width: 1px; border-style: solid; }
.border-b { border-bottom-width: 1px; border-style: solid; }
.border-white\/5 { border-color: rgba(255, 255, 255, 0.05); }
.border-white\/10 { border-color: rgba(255, 255, 255, 0.1); }
.border-brand-purple\/20 { border-color: rgba(139, 92, 246, 0.2); }
.border-brand-purple\/30 { border-color: rgba(139, 92, 246, 0.3); }

/* Sizing */
.w-4 { width: 1rem; flex-shrink: 0;}
.h-4 { height: 1rem; flex-shrink: 0;}
.w-5 { width: 1.25rem; flex-shrink: 0;}
.h-5 { height: 1.25rem; flex-shrink: 0;}
.w-10 { width: 2.5rem; }
.h-10 { height: 2.5rem; }
.w-12 { width: 3rem; }
.h-12 { height: 3rem; }
.w-14 { width: 3.5rem; }
.h-14 { height: 3.5rem; }
.w-16 { width: 4rem; }
.h-16 { height: 4rem; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-70vh { min-height: 70vh; }
.min-h-screen { min-height: 100vh; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-6xl { max-width: 72rem; }

/* Positioning & Display */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Effects */
.opacity-10 { opacity: 0.1; }
.opacity-20 { opacity: 0.2; }
.opacity-50 { opacity: 0.5; }
.opacity-70 { opacity: 0.7; }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7); }
.transition-colors { transition-property: background-color, border-color, color, fill, stroke; transition-duration: 300ms; }
.transition-all { transition-property: all; transition-duration: 300ms; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }
.transition-transform { transition-property: transform; transition-duration: 300ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

.backdrop-blur-xl {
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

/* Custom Components */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand-purple), var(--brand-pink));
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px 0 rgba(139, 92, 246, 0.39);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    background: linear-gradient(135deg, var(--brand-pink), var(--brand-purple));
}

.card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    backdrop-filter: blur(10px);
}

.hover-brand:hover {
    color: var(--brand-purple);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-clamp: 3;
    overflow: hidden;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.point-events-none { pointer-events: none; }

/* Table styling for Admin */
table { border-collapse: collapse; width: 100%; }
th { text-align: left; }
.divide-y > :not([hidden]) ~ :not([hidden]) { border-top: 1px solid rgba(255, 255, 255, 0.05); }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--darker); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* Markdown Prose Styling */
.prose { color: #d1d5db; line-height: 1.75; }
.prose p { margin-top: 1.25em; margin-bottom: 1.25em; }
.prose h1, .prose h2, .prose h3 { margin-top: 2em; margin-bottom: 1em; font-weight: 700; color: #fff; }
.prose h2 { font-size: 1.5em; }
.prose h3 { font-size: 1.25em; }
.prose ul { padding-left: 1.625em; list-style-type: disc; }
.prose ol { padding-left: 1.625em; list-style-type: decimal; }
.prose li { margin-top: 0.5em; margin-bottom: 0.5em; }
.prose blockquote { border-left-width: 0.25rem; border-color: var(--brand-purple); padding-left: 1rem; font-style: italic; color: #9ca3af; }
.prose a { color: var(--brand-pink); text-decoration: underline; text-underline-offset: 4px; }
.prose img { border-radius: 1rem; margin-top: 2em; margin-bottom: 2em; }

/* 
 * PREMIUM UPGRADES 
 */

/* Mesh Gradient System */
.mesh-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: var(--darker);
}

.mesh-ball {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: meshFlow 20s infinite alternate ease-in-out;
}

@keyframes meshFlow {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(100px, 50px) scale(1.2); }
}

/* Glassmorphism 2.0 */
.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(139, 92, 246, 0.3);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 60px -15px rgba(139, 92, 246, 0.2);
}

/* Typography & Text */
.text-balance { text-wrap: balance; }
.tracking-tightest { letter-spacing: -0.05em; }

.text-gradient {
    background: linear-gradient(135deg, var(--brand-purple), var(--brand-pink), var(--brand-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glow Effects */
.glow-purple { filter: drop-shadow(0 0 15px rgba(139, 92, 246, 0.4)); }
.glow-blue { filter: drop-shadow(0 0 15px rgba(59, 130, 246, 0.4)); }

/* Animations */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Reveal on Scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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

/* Premium Buttons */
.btn-glow {
    position: relative;
    overflow: hidden;
}

.btn-glow::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.btn-glow:hover::after {
    opacity: 1;
}

/* Icon Container */
.icon-box {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(236, 72, 153, 0.2));
    border: 1px solid rgba(139, 92, 246, 0.3);
    margin-bottom: 24px;
    transition: all 0.3s;
}

.card:hover .icon-box {
    transform: rotate(12deg) scale(1.1);
    background: linear-gradient(135deg, var(--brand-purple), var(--brand-pink));
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.4);
}

.card:hover .icon-box i {
    color: white !important;
}

/* Helpers */
.shrink-0 { flex-shrink: 0; }
.flex-grow { flex-grow: 1; }
.resize-y { resize: vertical; }
.tracking-tight { letter-spacing: -0.025em; }
.tracking-wide { letter-spacing: 0.025em; }
.uppercase { text-transform: uppercase; }