/**
 * =========================================================================
 * SOMUT PLANLAMA — ENTERPRISE DIGITAL PLATFORM
 * Design Language: Modern Dark Glassmorphic Engineering Platform
 * =========================================================================
 */

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

/* =========================================================================
   DESIGN TOKENS & SYSTEM VARIABLES
   ========================================================================= */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    --secondary-color: #10b981;
    --secondary-light: #34d399;
    
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    
    --dark-bg: #0f172a;
    --dark-bg-alt: #0b1120;
    --dark-surface: #1e293b;
    --dark-card: #1e293b;
    --border-color: rgba(255, 255, 255, 0.1);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --glass-bg: rgba(15, 23, 42, 0.75);
    --glass-card: rgba(30, 41, 59, 0.55);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.2);
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;
    
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-12: clamp(4rem, 8vw, 6rem);
    
    --container-max-width: 1400px;
    --header-height: 80px;
}

/* =========================================================================
   GLOBAL RESET & BASE STYLES
   ========================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.08) 0%, transparent 60%),
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 100% 100%, 36px 36px, 36px 36px;
    pointer-events: none;
    z-index: -1;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
ul { list-style: none; }

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
    letter-spacing: -0.02em;
    max-width: 900px; /* Prevent overly wide headings */
}

h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); }
h2 { font-size: clamp(2rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

/* =========================================================================
   LAYOUT & CONTAINERS
   ========================================================================= */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.section {
    padding: var(--space-12) 0;
    position: relative;
}

.section-alt {
    background: rgba(15, 23, 42, 0.6);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.section-header {
    margin-bottom: var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-light);
    background: rgba(37, 99, 235, 0.12);
    padding: 6px 14px;
    border-radius: 9999px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    margin-bottom: var(--space-4);
}

.section-desc {
    color: var(--text-secondary);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    max-width: 720px;
    line-height: 1.7;
    margin-top: var(--space-3);
}

.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================================
   HEADER & NAVIGATION
   ========================================================================= */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
}

.navbar-inner {
    display: flex;
    flex-wrap: nowrap !important;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
    gap: 1rem;
}

.logo { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.logo-badge {
    width: 32px; height: 32px; border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex; align-items: center; justify-content: center; color: #fff;
}
.logo-badge svg { width: 18px; height: 18px; }
.logo-text { font-size: 1.25rem; font-weight: 800; font-family: var(--font-heading); color: #fff; white-space: nowrap; }
.logo-text span { color: var(--primary-light); font-weight: 700; }

.nav-menu {
    display: none;
    align-items: center;
    gap: 0.5rem; /* tight gap */
    flex-wrap: nowrap !important;
    margin: 0 auto;
}
@media (min-width: 1100px) { .nav-menu { display: flex; } }

.nav-link {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap !important; /* CRITICAL */
    display: inline-block;
    text-align: center;
}

@media (min-width: 1300px) {
    .nav-link { font-size: 0.95rem; padding: 8px 14px; }
    .nav-menu { gap: 1rem; }
}

.nav-link:hover, .nav-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.nav-link-highlight {
    background: rgba(37, 99, 235, 0.15);
    color: var(--primary-light);
    border: 1px solid rgba(37, 99, 235, 0.3);
}
.nav-link-highlight:hover {
    background: rgba(37, 99, 235, 0.25);
    color: #fff;
}

.nav-link-ges {
    color: var(--secondary-light);
}

.nav-actions { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-content {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    min-width: 200px;
    box-shadow: var(--shadow-md);
}
.nav-dropdown:hover .nav-dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.nav-dropdown-content a {
    display: block;
    padding: 8px 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-radius: 4px;
    white-space: nowrap !important;
}
.nav-dropdown-content a:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

/* Mobile Toggle */
.mobile-toggle {
    display: flex; flex-direction: column; justify-content: space-between;
    width: 32px; height: 24px; background: transparent; border: none; cursor: pointer; padding: 0; z-index: 1001;
}
@media (min-width: 1100px) { .mobile-toggle { display: none; } }
.mobile-toggle span { width: 100%; height: 2px; background: #ffffff; transition: all var(--transition-fast); }
.mobile-toggle.open span:nth-child(1) { transform: translateY(11px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

.mobile-drawer {
    position: fixed; top: var(--header-height); left: 0; right: 0; bottom: 0;
    background: var(--dark-bg); z-index: 999; padding: var(--space-6) var(--space-5);
    display: flex; flex-direction: column; transform: translateX(100%); transition: transform var(--transition-base); overflow-y: auto;
}
.mobile-drawer.active { transform: translateX(0); }
.mobile-menu-links { display: flex; flex-direction: column; gap: 0.5rem; }
.mobile-menu-links a {
    display: block; font-size: 1.125rem; font-weight: 600; padding: 12px 16px;
    border-radius: var(--radius-sm); color: var(--text-secondary);
    white-space: nowrap !important; /* CRITICAL FOR MOBILE TOO */
}
.mobile-menu-links a:hover { color: #ffffff; background: rgba(255, 255, 255, 0.08); }

/* =========================================================================
   BUTTONS
   ========================================================================= */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.75rem 1.5rem; border: none; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: all var(--transition-base); white-space: nowrap;
}
.btn-primary { background: var(--primary-color); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.2); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.4); }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }
.w-full { width: 100%; }

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
    padding: calc(var(--header-height) + var(--space-8)) 0 var(--space-12);
    text-align: center;
    position: relative;
}
.hero-content {
    max-width: 850px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* =========================================================================
   CALCULATOR UI (TAKS/KAKS)
   ========================================================================= */
.calc-wrapper {
    background: var(--dark-card);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.calc-header {
    background: rgba(37, 99, 235, 0.1);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.calc-body {
    padding: var(--space-6);
}

.form-group {
    display: flex; flex-direction: column; margin-bottom: var(--space-4); text-align: left;
}
.form-group label {
    font-weight: 600; margin-bottom: 0.5rem; color: #e2e8f0; font-size: 0.95rem;
}
.form-control {
    background: rgba(0, 0, 0, 0.3); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); padding: 0.85rem 1rem; color: #fff;
    font-size: 1rem; width: 100%; font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary-light); }

.calc-results {
    background: rgba(0,0,0,0.2);
    padding: var(--space-6);
    border-top: 1px solid var(--border-color);
    display: none; /* hidden by default */
}

.result-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    text-align: center;
}
.result-card .value {
    font-size: 2rem; font-weight: 800; color: #fff; font-family: var(--font-heading); margin-bottom: 0.25rem;
}
.result-card .label { font-size: 0.85rem; color: var(--text-secondary); text-transform: uppercase; font-weight: 600;}

.calc-disclaimer {
    font-size: 0.8rem; color: var(--text-muted); margin-top: var(--space-4); text-align: center; line-height: 1.5;
}

/* =========================================================================
   CARDS
   ========================================================================= */
.card {
    background: var(--dark-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex; flex-direction: column;
}
.card-icon {
    width: 48px; height: 48px; border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.1); color: var(--primary-light);
    display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-4);
}
.card-icon svg { width: 24px; height: 24px; }
.card-title { font-size: 1.25rem; margin-bottom: var(--space-3); }
.card-text { color: var(--text-secondary); margin-bottom: var(--space-4); flex-grow: 1; }
.card-link { color: var(--primary-light); font-weight: 600; display: inline-flex; align-items: center; gap: 0.5rem; }

/* Scenario Cards ("Ne yapmak istiyorsunuz?") */
.scenario-card {
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    transition: transform var(--transition-fast);
    cursor: pointer;
}
.scenario-card:hover { border-color: var(--primary-light); transform: translateY(-3px); }
.scenario-title { font-size: 1.1rem; color: var(--primary-light); margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.85rem;}
.scenario-desc { font-weight: 600; font-size: 1.15rem; color: #fff;}

/* =========================================================================
   Q&A / SEARCH COMPONENT
   ========================================================================= */
.search-wrapper {
    max-width: 600px; margin: 0 auto var(--space-6); position: relative;
}
.search-input {
    width: 100%; padding: 1rem 1.5rem; padding-left: 3rem;
    border-radius: 9999px; background: var(--dark-surface);
    border: 1px solid var(--border-color); color: #fff; font-size: 1.1rem; font-family: inherit;
}
.search-input:focus { outline: none; border-color: var(--primary-light); }
.search-icon {
    position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: var(--text-muted);
}

.faq-item {
    background: var(--dark-surface); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); margin-bottom: var(--space-3);
    overflow: hidden;
}
.faq-question {
    padding: var(--space-4); font-weight: 600; cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
}
.faq-answer {
    padding: 0 var(--space-4) var(--space-4); color: var(--text-secondary); display: none;
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer {
    background: var(--dark-bg-alt); border-top: 1px solid var(--glass-border);
    padding: var(--space-12) 0 var(--space-6);
}
.footer-grid {
    display: grid; gap: var(--space-8); grid-template-columns: 1fr; margin-bottom: var(--space-8);
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer-col-title { font-size: 1.125rem; margin-bottom: var(--space-4); color: #fff; }
.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-links a { color: var(--text-secondary); font-size: 0.95rem; }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom {
    padding-top: var(--space-6); border-top: 1px solid var(--glass-border);
    display: flex; flex-direction: column; gap: var(--space-4); align-items: center; text-align: center; color: var(--text-muted); font-size: 0.875rem;
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; } }