/* =========================================================
SEAACADEMYIK HİZMETLERİ
ÇERKEZKÖY OSB CSS
========================================================= */

:root{
    --cer-primary:#0f172a;
    --cer-secondary:#1e293b;
    --cer-orange:#f97316;
    --cer-orange-2:#fb923c;
    --cer-text:#1f2937;
    --cer-muted:#64748b;
    --cer-light:#f8fafc;
    --cer-border:#e2e8f0;
    --cer-white:#ffffff;
    --cer-shadow:0 10px 40px rgba(15,23,42,.08);
    --cer-radius:24px;
}

/* =========================================================
BASE
========================================================= */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    font-family:Inter,sans-serif;
    color:var(--cer-text);
    background:#fff;
    overflow-x:hidden;
}

img{
    max-width:100%;
    display:block;
}

a{
    text-decoration:none;
}

.cer-page{
    position:relative;
}

.cer-container{
    width:min(1320px, calc(100% - 40px));
    margin:auto;
}

.cer-section{
    padding:100px 0;
}

.cer-light{
    background:#f8fafc;
}

.cer-dark{
    background:linear-gradient(135deg,#0f172a,#111827);
    color:#fff;
}

.cer-section-head{
    text-align:center;
    max-width:900px;
    margin:0 auto 60px;
}

.cer-section-head h2{
    font-size:clamp(32px,4vw,54px);
    line-height:1.1;
    margin:16px 0 18px;
    font-weight:900;
}

.cer-section-head p{
    font-size:18px;
    line-height:1.8;
    color:var(--cer-muted);
}

.cer-dark .cer-section-head p{
    color:rgba(255,255,255,.75);
}

.cer-section-tag{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:rgba(249,115,22,.12);
    color:var(--cer-orange);
    padding:10px 18px;
    border-radius:100px;
    font-size:14px;
    font-weight:800;
    letter-spacing:.3px;
}

/* =========================================================
BUTTONS
========================================================= */

.cer-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:58px;
    padding:0 32px;
    border-radius:16px;
    font-weight:800;
    transition:.3s ease;
    font-size:15px;
}

.cer-btn:hover{
    transform:translateY(-3px);
}

.cer-btn-primary{
    background:linear-gradient(135deg,var(--cer-orange),var(--cer-orange-2));
    color:#fff;
    box-shadow:0 14px 40px rgba(249,115,22,.35);
}

.cer-btn-whatsapp{
    background:#16a34a;
    color:#fff;
    box-shadow:0 14px 40px rgba(22,163,74,.30);
}

/* =========================================================
HERO
========================================================= */

.cer-hero{
    position:relative;
    overflow:hidden;
    padding:110px 0 90px;
    background:
    radial-gradient(circle at top left, rgba(249,115,22,.15), transparent 35%),
    linear-gradient(135deg,#0f172a,#111827);
}

.cer-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size:40px 40px;
    pointer-events:none;
}

.cer-hero-grid{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:70px;
    align-items:center;
    position:relative;
    z-index:2;
}

.cer-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.12);
    color:#f8fafc;
    padding:12px 18px;
    border-radius:100px;
    font-size:14px;
    margin-bottom:24px;
    font-weight:700;
}

.cer-hero h1{
    color:#fff;
    font-size:clamp(40px,5vw,74px);
    line-height:1.05;
    font-weight:900;
    margin-bottom:28px;
    letter-spacing:-1px;
}

.cer-hero p{
    color:rgba(255,255,255,.78);
    font-size:20px;
    line-height:1.9;
    margin-bottom:38px;
    max-width:760px;
}

.cer-hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:18px;
    margin-bottom:44px;
}

.cer-hero-image{
    position:relative;
}

.cer-hero-image img{
    width:100%;
    border-radius:32px;
    box-shadow:0 30px 80px rgba(0,0,0,.45);
    border:1px solid rgba(255,255,255,.08);
}

.cer-hero-stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
}

.cer-hero-stats div{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.08);
    border-radius:22px;
    padding:24px;
    backdrop-filter:blur(10px);
}

.cer-hero-stats strong{
    display:block;
    font-size:34px;
    color:#fff;
    font-weight:900;
    margin-bottom:10px;
}

.cer-hero-stats span{
    color:rgba(255,255,255,.72);
    font-size:14px;
    line-height:1.6;
}

/* =========================================================
TRUST
========================================================= */

.cer-trust{
    background:#fff;
    border-bottom:1px solid var(--cer-border);
}

.cer-trust-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
    padding:32px 0;
}

.cer-trust-grid div{
    background:#fff;
    border:1px solid var(--cer-border);
    border-radius:18px;
    padding:22px;
    text-align:center;
    font-weight:700;
    box-shadow:var(--cer-shadow);
}

/* =========================================================
TWO COL
========================================================= */

.cer-two-col{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:60px;
    align-items:start;
}

.cer-two-col h2{
    font-size:clamp(34px,4vw,56px);
    line-height:1.1;
    margin:20px 0 24px;
    font-weight:900;
}

.cer-two-col p{
    font-size:18px;
    line-height:1.9;
    color:var(--cer-muted);
    margin-bottom:22px;
}

.cer-info-card{
    background:#fff;
    border:1px solid var(--cer-border);
    border-radius:30px;
    padding:42px;
    box-shadow:var(--cer-shadow);
}

.cer-info-card h3{
    font-size:30px;
    margin-bottom:26px;
    font-weight:900;
}

.cer-info-card ul{
    list-style:none;
}

.cer-info-card li{
    position:relative;
    padding-left:28px;
    margin-bottom:18px;
    font-size:17px;
    line-height:1.8;
    color:var(--cer-muted);
}

.cer-info-card li::before{
    content:"";
    position:absolute;
    left:0;
    top:12px;
    width:12px;
    height:12px;
    border-radius:50%;
    background:var(--cer-orange);
}

/* =========================================================
SERVICE CARDS
========================================================= */

.cer-service-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:28px;
}

.cer-service-card{
    background:#fff;
    border-radius:28px;
    overflow:hidden;
    border:1px solid var(--cer-border);
    transition:.35s ease;
    box-shadow:var(--cer-shadow);
}

.cer-service-card:hover{
    transform:translateY(-10px);
}

.cer-service-card img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
}

.cer-service-card h3{
    font-size:24px;
    line-height:1.3;
    font-weight:900;
    padding:28px 28px 14px;
}

.cer-service-card p{
    color:var(--cer-muted);
    font-size:16px;
    line-height:1.8;
    padding:0 28px 32px;
}

/* =========================================================
SUCCESS
========================================================= */

.cer-success-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;
    align-items:start;
}

.cer-success-grid h2{
    font-size:clamp(34px,4vw,58px);
    line-height:1.1;
    margin:18px 0 24px;
    font-weight:900;
}

.cer-success-grid p{
    color:rgba(255,255,255,.78);
    font-size:18px;
    line-height:1.9;
}

.cer-success-list{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:24px;
}

.cer-success-list div{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    border-radius:24px;
    padding:34px;
}

.cer-success-list strong{
    display:inline-flex;
    width:62px;
    height:62px;
    align-items:center;
    justify-content:center;
    border-radius:18px;
    background:linear-gradient(135deg,var(--cer-orange),var(--cer-orange-2));
    color:#fff;
    font-size:24px;
    margin-bottom:24px;
}

.cer-success-list h3{
    font-size:24px;
    margin-bottom:14px;
    font-weight:900;
}

.cer-success-list p{
    font-size:15px;
    line-height:1.8;
    color:rgba(255,255,255,.72);
}

/* =========================================================
REGIONS
========================================================= */

.cer-region-tags{
    display:flex;
    flex-wrap:wrap;
    gap:18px;
    justify-content:center;
}

.cer-region-tags span{
    background:#fff;
    border:1px solid var(--cer-border);
    border-radius:100px;
    padding:16px 22px;
    font-weight:700;
    box-shadow:var(--cer-shadow);
}

/* =========================================================
FORM
========================================================= */

.cer-form-section{
    background:
    linear-gradient(135deg,#0f172a,#111827);
    color:#fff;
}

.cer-form-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:50px;
    align-items:start;
}

.cer-form-content h2{
    font-size:clamp(34px,4vw,58px);
    line-height:1.1;
    margin:18px 0 24px;
    font-weight:900;
}

.cer-form-content p{
    color:rgba(255,255,255,.75);
    font-size:18px;
    line-height:1.9;
    margin-bottom:32px;
}

.cer-map{
    border-radius:28px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.08);
    box-shadow:0 20px 60px rgba(0,0,0,.35);
}

.cer-form{
    background:#fff;
    color:#111827;
    border-radius:32px;
    padding:44px;
    box-shadow:0 20px 80px rgba(0,0,0,.25);
}

.cer-form label{
    display:block;
    margin-bottom:10px;
    font-weight:800;
    font-size:15px;
}

.cer-form input,
.cer-form select,
.cer-form textarea{
    width:100%;
    border:1px solid #dbe4ee;
    background:#fff;
    border-radius:16px;
    padding:16px 18px;
    margin-bottom:22px;
    font-size:15px;
    transition:.3s ease;
    outline:none;
}

.cer-form input:focus,
.cer-form select:focus,
.cer-form textarea:focus{
    border-color:var(--cer-orange);
    box-shadow:0 0 0 4px rgba(249,115,22,.10);
}

.cer-check{
    display:flex !important;
    align-items:flex-start;
    gap:12px;
    margin-bottom:24px;
    line-height:1.7;
}

.cer-check input{
    width:auto;
    margin:4px 0 0;
}

.cer-submit{
    width:100%;
    border:none;
    cursor:pointer;
}

.cer-form-whatsapp{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:56px;
    margin-top:18px;
    border-radius:16px;
    background:#16a34a;
    color:#fff;
    font-weight:800;
}

/* =========================================================
FAQ
========================================================= */

.cer-faq{
    max-width:1000px;
    margin:auto;
}

.cer-faq details{
    background:#fff;
    border:1px solid var(--cer-border);
    border-radius:24px;
    margin-bottom:20px;
    overflow:hidden;
    box-shadow:var(--cer-shadow);
}

.cer-faq summary{
    list-style:none;
    cursor:pointer;
    padding:28px 34px;
    font-size:20px;
    font-weight:800;
    position:relative;
}

.cer-faq summary::-webkit-details-marker{
    display:none;
}

.cer-faq summary::after{
    content:"+";
    position:absolute;
    right:30px;
    top:50%;
    transform:translateY(-50%);
    font-size:30px;
    color:var(--cer-orange);
}

.cer-faq details[open] summary::after{
    content:"−";
}

.cer-faq p{
    padding:0 34px 30px;
    color:var(--cer-muted);
    line-height:1.9;
    font-size:16px;
}

/* =========================================================
FINAL CTA
========================================================= */

.cer-final-cta{
    padding:100px 0;
    background:
    radial-gradient(circle at top right, rgba(249,115,22,.16), transparent 30%),
    linear-gradient(135deg,#111827,#0f172a);
    text-align:center;
    color:#fff;
}

.cer-final-cta h2{
    font-size:clamp(36px,4vw,62px);
    line-height:1.1;
    max-width:1000px;
    margin:0 auto 24px;
    font-weight:900;
}

.cer-final-cta p{
    max-width:900px;
    margin:0 auto 36px;
    color:rgba(255,255,255,.74);
    line-height:1.9;
    font-size:19px;
}

/* =========================================================
FLOATING WHATSAPP
========================================================= */

.cer-floating-whatsapp{
    position:fixed;
    right:24px;
    bottom:24px;
    z-index:999;
    width:72px;
    height:72px;
    border-radius:50%;
    background:#16a34a;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:13px;
    font-weight:900;
    box-shadow:0 16px 40px rgba(22,163,74,.40);
}

/* =========================================================
ANIMATIONS
========================================================= */

.cer-service-card,
.cer-info-card,
.cer-trust-grid div,
.cer-faq details{
    transition:.35s ease;
}

.cer-service-card:hover,
.cer-info-card:hover,
.cer-trust-grid div:hover,
.cer-faq details:hover{
    transform:translateY(-6px);
}

/* =========================================================
RESPONSIVE
========================================================= */

@media(max-width:1200px){

    .cer-service-grid{
        grid-template-columns:repeat(2,1fr);
    }

    .cer-hero-grid,
    .cer-two-col,
    .cer-success-grid,
    .cer-form-grid{
        grid-template-columns:1fr;
    }

    .cer-hero-stats{
        grid-template-columns:repeat(2,1fr);
    }

}

@media(max-width:768px){

    .cer-section{
        padding:70px 0;
    }

    .cer-container{
        width:min(100% - 24px, 1320px);
    }

    .cer-hero{
        padding:80px 0 60px;
    }

    .cer-hero h1{
        font-size:42px;
    }

    .cer-hero p{
        font-size:17px;
    }

    .cer-hero-actions{
        flex-direction:column;
    }

    .cer-btn{
        width:100%;
    }

    .cer-hero-stats{
        grid-template-columns:1fr;
    }

    .cer-trust-grid{
        grid-template-columns:1fr;
    }

    .cer-service-grid{
        grid-template-columns:1fr;
    }

    .cer-success-list{
        grid-template-columns:1fr;
    }

    .cer-form{
        padding:28px;
    }

    .cer-faq summary{
        font-size:17px;
        padding:24px;
    }

    .cer-faq p{
        padding:0 24px 24px;
    }

    .cer-floating-whatsapp{
        width:64px;
        height:64px;
        right:18px;
        bottom:18px;
    }

}