@import url("./Base.css");

/* ===========================================================
   TradieFlow case study page
   Reuses Base.css tokens, navbar and footer.
   =========================================================== */

.case-study {
    background-color: var(--bg);
    color: var(--text);
    padding: 4rem 1.5rem 5rem;
}

.case-study .cs-inner {
    max-width: 1040px;
    margin: 0 auto;
}

/* ---------- Hero ---------- */
.cs-hero .cs-eyebrow {
    font-family: var(--roboto);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.95rem;
    color: var(--nav-bg);
    margin-bottom: 0.75rem;
}

.cs-hero h1 {
    color: var(--title);
    font-size: var(--heading1);
    line-height: 1.05;
    margin-bottom: 1rem;
}

.cs-hero .cs-tagline {
    font-size: var(--heading4);
    max-width: 50ch;
    line-height: 1.4;
    margin-bottom: 2rem;
}

.cs-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.cs-btn {
    text-decoration: none;
    background-color: var(--nav-bg);
    color: var(--bg);
    padding: 0.7rem 1.4rem;
    border-radius: 8px;
    font-family: var(--roboto);
    font-size: var(--paragraph);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.cs-btn:hover {
    background-color: var(--button);
    color: var(--text);
}

.cs-btn.cs-btn-ghost {
    background-color: transparent;
    color: var(--nav-bg);
    border: 2px solid var(--nav-bg);
    padding: calc(0.7rem - 2px) calc(1.4rem - 2px);
}

.cs-btn.cs-btn-ghost:hover {
    background-color: var(--nav-bg);
    color: var(--bg);
}

.cs-note {
    font-size: 1rem;
    color: var(--title);
    opacity: 0.75;
    margin: 0 0 2rem;
}

/* ---------- Media (gif / screenshots) ---------- */
.cs-media {
    margin: 2.5rem 0 1rem;
    border-left: 2px solid var(--nav-bg);
    border-top: 2px solid var(--nav-bg);
    border-radius: 25px;
    padding: 1rem;
    background-color: #ffffff;
}

.cs-media img {
    display: block;
    width: 100%;
    border-radius: 14px;
}

.cs-media figcaption {
    font-size: 1rem;
    color: var(--title);
    opacity: 0.8;
    padding-top: 0.85rem;
    text-align: center;
}

/* ---------- Sections ---------- */
.cs-section {
    margin-top: 4rem;
}

.cs-section>h2 {
    color: var(--title);
    font-size: var(--heading2);
    margin-bottom: 1.25rem;
}

.cs-section p {
    font-size: var(--heading4);
    line-height: 1.3;
    margin: 0 0 1rem;
}

.cs-callout {
    background-color: var(--border);
    color: var(--text);
    padding: 1.25rem;
    border-radius: 14px;
    line-height: 1.3;
    font-size: var(--heading4);
}

/* ---------- Feature grid ---------- */
.cs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-top: 1rem;
}

.cs-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.2rem;
}

.cs-card h3 {
    font-size: var(--heading4);
    color: var(--nav-bg);
    margin-bottom: 0.5rem;
}

.cs-card p {
    font-size: 1.5rem;
    line-height: 1.3;
    margin: 0;
}

/* ---------- Architecture diagram ---------- */
.cs-diagram {
    background-color: #ffffff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.cs-diagram svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ---------- Clean Architecture nested layers ---------- */
.cs-layers {
    margin-top: 1.5rem;
}

.cs-layer {
    border-radius: 16px;
    padding: 1.25rem;
    text-align: center;
    font-size: 1.2rem;
}

.cs-layer-name {
    display: block;
    font-family: var(--roboto);
    font-weight: 500;
}

.cs-layer-api {
    background-color: #eef7ef;
    border: 1px solid var(--border);
    color: var(--title);
    font-size: 1.2rem;
}

.cs-layer-infra {
    background-color: var(--card-bg);
    margin-top: 0.85rem;
    color: var(--title);
    font-size: 1.2rem;
}

.cs-layer-app {
    background-color: var(--accent-green);
    margin-top: 0.85rem;
    color: var(--text);
    font-size: 1.2rem;
}

.cs-layer-domain {
    background-color: var(--nav-bg);
    margin-top: 0.85rem;
    color: var(--bg);
    font-size: 1.2rem;
}

.cs-layer-domain .cs-layer-sub {
    display: block;
    font-family: var(--alice);
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 0.35rem;
}

/* ---------- Lists ---------- */
.cs-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
}

.cs-list li {
    position: relative;
    padding-left: 1.85rem;
    margin-bottom: 0.85rem;
    font-size: var(--heading4);
    line-height: 1.2;
}

.cs-list li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--nav-bg);
    font-weight: 700;
}

/* ---------- Tech tags ---------- */
.cs-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
    padding: 0;
    list-style: none;
}

.cs-tags li {
    background-color: var(--accent-green);
    color: var(--text);
    padding: 0.4rem 0.95rem;
    border-radius: 999px;
    font-family: var(--roboto);
    font-size: 1.2rem;
    white-space: nowrap;
}

/* ---------- Closing CTA ---------- */
.cs-closing {
    margin-top: 4rem;
    text-align: center;
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem 1.5rem;
}

.cs-closing h2 {
    color: var(--title);
    font-size: var(--heading2);
    margin-bottom: 1.25rem;
}

.cs-closing .cs-actions {
    justify-content: center;
    margin-bottom: 0;
}

.cs-back {
    display: inline-block;
    text-decoration: none;
    margin-top: 1.25rem;
    color: var(--nav-bg);
    font-family: var(--roboto);
    font-size: var(--paragraph);
}

.cs-back:hover {
    text-decoration: underline;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
    .case-study {
        padding: 3rem 1.25rem 4rem;
    }

    .cs-hero h1 {
        font-size: 2.6rem;
    }

    .cs-grid {
        grid-template-columns: 1fr;
    }

    .cs-section>h2 {
        font-size: var(--heading3);
    }
}