/* ============================================================
   PARS OFFICIAL HEADER - DESIGN PRESERVED
   ============================================================ */
header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    background: var(--glass-bg);
    backdrop-filter: blur(1rem);
    -webkit-backdrop-filter: blur(1rem);
    border-bottom: 0.0625rem solid rgba(0, 0, 0, 0.1);
    z-index: 2000;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-hidden { transform: translateY(-110%) !important; }

/* --- LOGO SQUAD --- */
header .logo a {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

header .logo .p-square {
    background-color: var(--primary-orange);
    color: var(--primary-white);
    width: 2.5rem; height: 2.5rem;
    display: flex; justify-content: center; align-items: center;
    border-radius: 0.4rem;
    font-weight: 900;
    font-size: 1.25rem;
    transition: var(--nav-transition);
}

header .logo .brand-text {
    color: var(--primary-black);
    font-weight: 900;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: -0.02rem;
}

header .logo:hover .p-square { transform: rotate(-10deg) scale(1.1); }

/* --- NAV LINKS (MAINTAINING YOUR CAPSULE DESIGN) --- */
header .nav-links {
    display: flex;
    gap: 0.5rem; /* Butonlar arası boşluk */
    align-items: center;
}

header .nav-links a {
    text-decoration: none;
    color: var(--primary-black);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 0.6rem 1.2rem;
    border-radius: 3rem; /* Senin meşhur yuvarlak hatların */
    transition: var(--nav-transition);
}

header .nav-links a:hover {
    color: var(--primary-orange);
    background: rgba(0, 0, 0, 0.03);
}

header .nav-links a.active {
    color: var(--primary-orange) !important;
    background: rgba(255, 87, 34, 0.08);
}

/* CTA BUTTONS - YOUR BRAND POWER */
header .nav-links a.nav-cta {
    background-color: var(--primary-orange);
    color: var(--primary-white) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

header .nav-links a.nav-cta:hover {
    background-color: var(--primary-black);
    transform: translateY(-2px);
}
/* Nav CTA Aktif Durumu */
header .nav-links a.nav-cta-active {
    background-color: var(--primary-black);
    color: var(--primary-white) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Aktif butona hover yapıldığında (Opsiyonel: Biraz canlandırmak için) */
header .nav-links a.nav-cta-active:hover {
    background-color: var(--primary-orange);
    transform: translateY(-2px);
}

/* ============================================================
   RESPONSIVE - SMART & BRAND-READY
   ============================================================ */
header .menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    cursor: pointer;
    z-index: 2100;
}

header .menu-toggle .bar {
    width: 1.6rem; height: 0.18rem;
    background-color: var(--primary-black);
    border-radius: 0.1rem;
}

/* ============================================================
   PARS MASTER RESPONSIVE SYSTEM (ALL DEVICES)
   ============================================================ */

/* --- 1. GENEL MOBİL & TABLET AYARLARI (992px ve altı) --- */
@media (max-width: 992px) {
    header {
        padding: 0 1.2rem; /* Kenar boşlukları daraltıldı */
    }

    header .menu-toggle { 
        display: flex; 
    }

    /* Full-screen Mobil Menü */
    header .nav-links {
        position: fixed;
        top: 0; 
        left: -100%; /* Kapalı konum */
        width: 100%; 
        height: 100vh; /* Ekranı kapla */
        background: var(--primary-white);
        flex-direction: column;
        justify-content: center;
        transition: 0.4s cubic-bezier(0.77, 0, 0.175, 1);
        z-index: 2050;
    }

    /* Menü açıldığında */
    #menu-check:checked ~ .nav-links { 
        left: 0; 
    }

    header .nav-links a {
        font-size: 1.5rem;
        padding: 1rem 2rem;
        width: 80%; /* Butonlar mobilde daha geniş */
        text-align: center;
    }

    /* Logo Küçültme (A51 ve benzeri telefonlar için) */
    header .logo .p-square {
        width: 2.2rem; 
        height: 2.2rem;
        font-size: 1.1rem;
    }

    header .logo .brand-text {
        font-size: 0.95rem;
        white-space: nowrap;
    }

    /* --- SAYFA AKIŞI (BOY SORUNUNU ÇÖZEN KISIM) --- */
    html, body {
        height: auto !important;
        overflow-x: hidden;
    }

    section {
        height: auto !important; /* Çiviyi söküyoruz, içerik uzasın */
        min-height: 100vh; 
        padding: 100px 20px 60px 20px !important; /* Header altına itiyoruz */
        display: flex;
        flex-direction: column !important;
    }
}

/* --- 2. KÜÇÜK TELEFONLAR (480px ve altı) --- */
@media (max-width: 480px) {
    header .logo .p-square {
        width: 2rem;
        height: 2rem;
    }

    header .logo .brand-text {
        font-size: 0.85rem;
    }

    /* Form ve Grid elemanlarını alt alta diz */
    .form-row {
        flex-direction: column !important;
        gap: 1rem;
    }
    
    .form-group {
        width: 100% !important;
    }
}

/* --- 3. EKSTRA KÜÇÜK CİHAZLAR (375px ve altı) --- */
@media (max-width: 375px) {
    /* Yazı sığmazsa gizle, sadece kare P kalsın */
    header .logo .brand-text {
        display: none;
    }
}

/* --- 4. DEV EKRANLAR (Sitenin çok yayılmaması için) --- */
@media (min-width: 1600px) {
    .container, .grid-form {
        max-width: 1400px;
        margin: 0 auto;
    }
}

/* --- HAMBURGER ANIMATION (STAYS OUTSIDE) --- */
#menu-check:checked + .menu-toggle .bar:nth-of-type(1) { transform: translateY(0.58rem) rotate(45deg); }
#menu-check:checked + .menu-toggle .bar:nth-of-type(2) { opacity: 0; }
#menu-check:checked + .menu-toggle .bar:nth-of-type(3) { transform: translateY(-0.58rem) rotate(-45deg); }