.case-study-section {
    position: relative;
    z-index: 11;
    padding: clamp(5rem, 10vh, 8rem) clamp(1rem, 4vw, 3rem);
    color: #fff;
    background: #080808;
}

.case-study-shell {
    max-width: 1500px;
    margin: 0 auto;
}

.case-study-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: clamp(2rem, 7vw, 7rem);
    align-items: end;
    padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.case-study-intro .eyebrow {
    grid-column: 1 / -1;
    margin-bottom: -1.25rem;
    color: var(--red);
    font: 700 0.72rem/1 "Space Grotesk", sans-serif;
    letter-spacing: 0.15em;
}

.case-study-intro h2 {
    margin: 0;
    color: #fff;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2.8rem, 6.5vw, 6.7rem);
    font-weight: 900;
    letter-spacing: -0.065em;
    line-height: 0.9;
}

.case-study-intro > p {
    max-width: 540px;
    margin: 0;
    color: rgba(255, 255, 255, 0.58);
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    line-height: 1.65;
}

.case-study-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-study-card {
    display: grid;
    grid-template-columns: clamp(3.5rem, 6vw, 6rem) minmax(0, 1fr);
    gap: clamp(1rem, 2vw, 2rem);
    min-height: 410px;
    padding: clamp(2rem, 4vw, 4rem) clamp(1rem, 4vw, 4rem) clamp(2.5rem, 5vw, 5rem) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.case-study-card:nth-child(odd) {
    padding-right: clamp(2rem, 5vw, 5rem);
    border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.case-study-card:nth-child(even) {
    padding-left: clamp(2rem, 5vw, 5rem);
}

.case-study-number {
    color: var(--red);
    font: 900 clamp(2rem, 4vw, 4.25rem)/0.9 "Space Grotesk", sans-serif;
    letter-spacing: -0.07em;
}

.case-study-label {
    display: block;
    margin: 0.25rem 0 1.2rem;
    color: rgba(255, 255, 255, 0.42);
    font: 700 0.68rem/1 "Space Grotesk", sans-serif;
    letter-spacing: 0.14em;
}

.case-study-card h3 {
    margin: 0 0 1rem;
    color: #fff;
    font: 800 clamp(1.5rem, 2.5vw, 2.45rem)/1.04 "Space Grotesk", sans-serif;
    letter-spacing: -0.04em;
}

.case-study-card p,
.case-study-card li {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.98rem;
    line-height: 1.62;
}

.case-study-card ul {
    display: grid;
    gap: 0.55rem;
    margin: 1.4rem 0 0;
    padding: 0;
    list-style: none;
}

.case-study-card li {
    position: relative;
    padding-left: 1.15rem;
}

.case-study-card li::before {
    position: absolute;
    top: 0.68em;
    left: 0;
    width: 0.35rem;
    height: 0.35rem;
    background: var(--red);
    border-radius: 50%;
    content: "";
}

.case-study-disclaimer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4) !important;
    font-size: 0.8rem !important;
}

.website-preview-section {
    position: relative;
    z-index: 12;
    margin-top: -32px;
    padding: clamp(4rem, 8vh, 7rem) clamp(1rem, 4vw, 3rem) clamp(2rem, 5vh, 3.5rem);
    color: var(--white);
    background: radial-gradient(circle at 50% 0, rgba(255, 0, 0, 0.16), transparent 34rem), var(--black);
    border-top-left-radius: 32px;
    border-top-right-radius: 32px;
    box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.18);
}

.preview-shell {
    max-width: 1500px;
    margin: 0 auto;
}

.preview-section-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: end;
    margin-bottom: 2.5rem;
}

.preview-copy .eyebrow {
    color: var(--red);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.preview-copy h2 {
    margin-top: 0.5rem;
    color: #fff;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.1;
    text-transform: lowercase;
}

.preview-copy p {
    max-width: 650px;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: clamp(1rem, 1.2vw, 1.15rem);
    line-height: 1.55;
}

.preview-switcher {
    display: flex;
    gap: 0.4rem;
    padding: 0.35rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
}

.preview-switcher button {
    min-height: 42px;
    padding: 0.7rem 1.15rem;
    color: rgba(255, 255, 255, 0.58);
    background: transparent;
    border: 0;
    border-radius: 999px;
    font: 700 0.76rem/1 "Space Grotesk", sans-serif;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 180ms ease, background 180ms ease;
}

.preview-switcher button:hover,
.preview-switcher button:focus-visible {
    color: #fff;
}

.preview-switcher button.is-active {
    color: #090909;
    background: #fff;
}

.preview-page-directory {
    display: grid;
    grid-template-columns: auto minmax(220px, 420px) 1fr;
    gap: 1rem;
    align-items: center;
    margin: -0.75rem 0 1.25rem;
    padding: 0.85rem 1rem;
    color: rgba(255, 255, 255, 0.66);
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 10px;
}

.preview-page-directory label {
    font: 700 0.68rem/1 "Space Grotesk", sans-serif;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.preview-page-directory select {
    width: 100%;
    min-height: 40px;
    padding: 0 2.6rem 0 0.9rem;
    color: #fff;
    background: #19191b;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 7px;
    font: 600 0.78rem/1.2 "Space Grotesk", sans-serif;
    cursor: pointer;
}

.preview-page-directory select:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.preview-page-status {
    justify-self: end;
    color: rgba(255, 255, 255, 0.46);
    font-size: 0.75rem;
    line-height: 1.35;
    text-align: right;
}

.preview-page-status.is-live { color: #78d998; }
.preview-page-status.is-archive { color: #f4ce68; }
.preview-page-status.is-fallback { color: #ff8f86; }

.mock-browser {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: #1c1c1e;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.mock-browser-toolbar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 1.25rem;
    background: #2c2c2e;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.preview-interaction-bar {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 0.7rem 1.25rem;
    color: #111;
    background: #f2efe8;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    font-family: "Space Grotesk", sans-serif;
}

.preview-interaction-bar span {
    flex: 0 0 auto;
    padding: 0.35rem 0.55rem;
    color: #fff;
    background: var(--red);
    border-radius: 999px;
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.1em;
}

.preview-interaction-bar strong {
    font-size: clamp(0.72rem, 1vw, 0.84rem);
    font-weight: 700;
    line-height: 1.35;
}

.mock-browser-dots {
    display: flex;
    flex-shrink: 0;
    gap: 6px;
}

.mock-browser-dots span {
    display: block;
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.mock-browser-dots span:nth-child(1) { background: #ff5f56; }
.mock-browser-dots span:nth-child(2) { background: #ffbd2e; }
.mock-browser-dots span:nth-child(3) { background: #27c93f; }

.mock-browser-address-bar {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-width: 0;
    padding: 0.4rem 1rem;
    color: rgba(255, 255, 255, 0.5);
    background: #1c1c1e;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font: 0.8rem/1 sans-serif;
}

.mock-browser-address-bar span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mock-browser-open {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    color: rgba(255, 255, 255, 0.55);
    transition: color 160ms ease;
}

.mock-browser-open:hover { color: #fff; }

.mock-browser-viewport {
    position: relative;
    width: 100%;
    height: 75vh;
    min-height: 540px;
    background: #fff;
}

.preview-interaction-hint {
    position: absolute;
    z-index: 3;
    top: 1rem;
    left: 50%;
    display: flex;
    gap: 0.55rem;
    align-items: center;
    padding: 0.65rem 0.9rem;
    color: #fff;
    background: rgba(8, 8, 8, 0.86);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 999px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    font: 700 0.72rem/1 "Space Grotesk", sans-serif;
    letter-spacing: 0.02em;
    pointer-events: none;
    transform: translateX(-50%);
    transition: opacity 220ms ease, transform 220ms ease;
}

.preview-interaction-hint > span {
    color: var(--red);
    font-size: 1rem;
}

.mock-browser-viewport.is-preview-engaged .preview-interaction-hint {
    opacity: 0;
    transform: translate(-50%, -0.5rem);
}

.mock-browser-viewport iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: #fff;
    pointer-events: auto;
}

.preview-note {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.48);
    font-size: 0.78rem;
    line-height: 1.45;
}

.preview-note::before {
    content: "i";
    display: grid;
    flex: 0 0 1.15rem;
    place-items: center;
    width: 1.15rem;
    height: 1.15rem;
    color: #111;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    font-weight: 800;
}

@media (max-width: 760px) {
    .case-study-intro { grid-template-columns: 1fr; gap: 1.5rem; }
    .case-study-intro .eyebrow { margin-bottom: 0; }
    .case-study-grid { grid-template-columns: 1fr; }
    .case-study-card,
    .case-study-card:nth-child(odd),
    .case-study-card:nth-child(even) {
        grid-template-columns: 3.25rem minmax(0, 1fr);
        min-height: 0;
        padding: 2.5rem 0;
        border-right: 0;
    }
    .case-study-number { font-size: 2.4rem; }
    .preview-section-header { grid-template-columns: 1fr; }
    .preview-switcher { width: 100%; }
    .preview-switcher button { flex: 1; padding-inline: 0.8rem; }
    .preview-page-directory { grid-template-columns: 1fr; gap: 0.65rem; margin-top: -0.5rem; }
    .preview-page-status { justify-self: start; text-align: left; }
    .mock-browser-toolbar { gap: 0.75rem; padding-inline: 0.8rem; }
    .mock-browser-dots span { width: 8px; height: 8px; }
    .mock-browser-address-bar { justify-content: flex-start; font-size: 0.72rem; }
    .preview-interaction-bar { align-items: flex-start; padding: 0.7rem 0.8rem; }
    .preview-interaction-bar strong::first-letter { text-transform: uppercase; }
    .preview-interaction-hint strong { font-size: 0; }
    .preview-interaction-hint strong::after { content: "Dokun ve kaydır"; font-size: 0.72rem; }
    .mock-browser-viewport { height: 68vh; min-height: 500px; }
}