/* =====================================================
   GLOBAL
===================================================== */
body {
    margin: 0;
    font-family: "Inter", Arial, sans-serif;
    background: #f4f6f8;
    color: #333;
    line-height: 1.6;
}

* {
    box-sizing: border-box;
}

/* =====================================================
   HERO
===================================================== */
.hero {
    text-align: center;
    padding: 120px 20px 90px;
    background: linear-gradient(135deg, #0044ff, #7a2bff);
    color: white;
    position: relative;
}

.hero-logo {
    width: 140px;
    margin: 0 auto 25px;
    display: block;
    animation: fadeIn 1.2s ease;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* =====================================================
   SECTIONS
===================================================== */
.section,
.section-ai {
    padding: 70px 20px;
    max-width: 1200px;
    margin: auto;
}

.section-ai {
    background: #eef2f7;
    border-radius: 12px;
}

.section-title {
    text-align: center;
    font-size: 2.3rem;
    margin-bottom: 40px;
    color: #003d7a;
    font-weight: 700;
}

/* =====================================================
   GRID
===================================================== */
.grid,
.grid-ai {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.grid-ai.small {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

/* =====================================================
   CARDS (ANA HİZMETLER)
===================================================== */
.card,
.ai-card {
    background: white;
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: 0.25s ease;
    border-top: 4px solid #7a2bff20;
}

.card:hover,
.ai-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.15);
    border-top-color: #7a2bff;
}

.card h3,
.ai-card h3 {
    font-size: 1.25rem;
    color: #003d7a;
    margin-bottom: 10px;
}

/* =====================================================
   İSG KARTLARI
===================================================== */
.section .grid .card h3 i {
    margin-right: 8px;
}

/* =====================================================
   SEKTÖR KARTLARI
===================================================== */
.grid-sektor {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: auto;
}

.sektor-card {
    background: #ffffff;
    padding: 28px;
    border-radius: 14px;
    text-align: left;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    border-top: 4px solid #8a00ff;
    transition: 0.25s;
}

.sektor-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.18);
}

.sektor-card i {
    font-size: 30px;
    color: #8a00ff;
    margin-bottom: 14px;
}

.sektor-card h3 {
    font-size: 1.25rem;
    margin: 5px 0 12px;
    color: #003d7a;
    font-weight: 700;
}

.sektor-card p {
    font-size: 0.97rem;
    color: #444;
    line-height: 1.5;
}

/* =====================================================
   FOOTER
===================================================== */
footer {
    background: #0f1630;
    color: #fff;
    text-align: center;
    padding: 25px 10px;
    margin-top: 50px;
    font-size: 0.95rem;
}

/* =====================================================
   WHATSAPP BUTTON
===================================================== */
.whatsapp {
    position: fixed;
    bottom: 22px;
    right: 22px;
    background: #25d366;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0,0,0,0.4);
    z-index: 9999;
}

/* =====================================================
   ANIMATIONS
===================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   RESPONSIVE OPTIMIZATIONS
===================================================== */
@media (max-width: 768px) {
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .section-title { font-size: 1.9rem; }
    .hero { padding: 90px 20px 70px; }
}