/* ─────────────────────────────────────────────────────────────────────────────
   KIVO – Project Page Styles (extends portfolio design system)
   ───────────────────────────────────────────────────────────────────────────── */

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap");

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: "Poppins", sans-serif;
    background: #fff;
    color: rgb(85, 85, 85);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

html { scroll-behavior: smooth; }

p { color: rgb(85, 85, 85); }

a {
    color: black;
    text-decoration: none;
    transition: all 300ms ease;
}

a:hover {
    color: grey;
    text-decoration: underline;
    text-underline-offset: 0.5rem;
    text-decoration-color: rgb(181, 181, 181);
}

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

/* ── Layout ── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ── Navigation ── */
#desktop-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 2rem;
    border-bottom: 1px solid rgb(230, 230, 230);
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: rgb(53, 53, 53);
    cursor: default;
}

.logo:hover { text-decoration: none; color: rgb(53, 53, 53); }

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgb(85, 85, 85);
}

.nav-links a:hover {
    color: rgb(53, 53, 53);
    text-decoration: underline;
    text-underline-offset: 0.5rem;
    text-decoration-color: rgb(181, 181, 181);
}

/* ── Hamburger Nav ── */
#hamburger-nav {
    display: none;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0 1.5rem;
    border-bottom: 1px solid rgb(230, 230, 230);
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.hamburger-menu { position: relative; display: inline-block; }

.hamburger-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 24px;
    width: 30px;
    cursor: pointer;
}

.hamburger-icon span {
    width: 100%;
    height: 2px;
    background-color: black;
    transition: all 0.3s ease-in-out;
    display: block;
}

.menu-links {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    width: fit-content;
    min-width: 180px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    border: 1px solid rgb(230, 230, 230);
    border-radius: 0.5rem;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.menu-links a {
    display: block;
    padding: 12px 20px;
    text-align: left;
    font-size: 1rem;
    color: black;
    text-decoration: none;
    transition: all 0.3s ease-in-out;
}

.menu-links li { list-style: none; }
.menu-links.open { max-height: 300px; }

.hamburger-icon.open span:first-child { transform: rotate(45deg) translate(10px, 5px); }
.hamburger-icon.open span:nth-child(2) { opacity: 0; }
.hamburger-icon.open span:last-child { transform: rotate(-45deg) translate(10px, -5px); }

/* ── Buttons ── */
.btn {
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 300ms ease;
    padding: 0.8rem 1.6rem;
    border-radius: 2rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-color-1,
.btn-color-2 {
    border: rgb(53, 53, 53) 0.1rem solid;
}

.btn-color-1 {
    background: rgb(53, 53, 53);
    color: white;
}

.btn-color-1:hover {
    background: rgb(0, 0, 0);
    color: white;
    text-decoration: none;
}

.btn-color-2 {
    background: none;
    color: rgb(53, 53, 53);
}

.btn-color-2:hover {
    background: rgb(53, 53, 53);
    color: white;
    border-color: rgb(53, 53, 53);
    text-decoration: none;
}

.btn-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ── Cards ── */
.details-container {
    padding: 1.5rem;
    background: white;
    border-radius: 2rem;
    border: 0.1rem solid rgb(163, 163, 163);
    text-align: center;
}

.details-container h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgb(53, 53, 53);
    margin-bottom: 0.5rem;
}

/* ── Section Labels ── */
.section__text__p1 {
    color: rgb(160, 160, 160);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    margin-bottom: 0.25rem;
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    color: rgb(53, 53, 53);
    text-align: center;
    margin-bottom: 1rem;
}

/* ── Hero Section ── */
#hero {
    padding: 6rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(160deg, #f9f9fc 0%, #fff 60%);
}

#hero .app-icon {
    width: 120px;
    height: 120px;
    border-radius: 2rem;
    margin: 0 auto 2rem;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(53, 53, 53, 0.15);
}

.app-name {
    font-size: 3.5rem;
    font-weight: 700;
    color: rgb(53, 53, 53);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.app-tagline {
    font-size: 1.2rem;
    color: rgb(110, 110, 110);
    max-width: 520px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.platform-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.badge img { width: 1rem; height: 1rem; object-fit: contain; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: rgb(85, 85, 85);
    background: rgb(247, 247, 247);
    border: 0.1rem solid rgb(200, 200, 200);
    border-radius: 100px;
    padding: 0.3rem 0.9rem;
}

/* ── Features Section ── */
#features {
    padding: 5rem 2rem;
    background: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    padding: 2rem 1.5rem;
    background: white;
    border-radius: 2rem;
    border: 0.1rem solid rgb(163, 163, 163);
    text-align: center;
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.07);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 1rem;
    background: rgb(245, 245, 245);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.6rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgb(53, 53, 53);
    margin-bottom: 0.6rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: rgb(120, 120, 120);
    line-height: 1.6;
}

/* ── About Section ── */
#about {
    padding: 5rem 2rem;
    background: rgb(250, 250, 250);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-text p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    color: rgb(85, 85, 85);
}

.about-text p strong {
    color: rgb(53, 53, 53);
    font-weight: 600;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.stat-card {
    padding: 1.5rem;
    background: white;
    border-radius: 2rem;
    border: 0.1rem solid rgb(163, 163, 163);
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.stat-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: rgb(53, 53, 53);
    margin-bottom: 0.1rem;
}

.stat-card p {
    font-size: 0.85rem;
    color: rgb(130, 130, 130);
    margin: 0;
}

/* ── Formats Section ── */
#formats {
    padding: 5rem 2rem;
    background: #fff;
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.format-card {
    padding: 2rem;
    background: white;
    border-radius: 2rem;
    border: 0.1rem solid rgb(163, 163, 163);
    text-align: center;
    transition: transform 300ms ease;
}

.format-card:hover { transform: translateY(-4px); }

.format-emoji { font-size: 2.5rem; margin-bottom: 0.75rem; }

.format-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: rgb(53, 53, 53);
    margin-bottom: 0.5rem;
}

.format-card p {
    font-size: 0.85rem;
    color: rgb(130, 130, 130);
}

.format-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.75rem;
}

.format-tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    background: rgb(245, 245, 245);
    border: 0.1rem solid rgb(200, 200, 200);
    border-radius: 100px;
    color: rgb(85, 85, 85);
}

/* ── Tech Section ── */
#tech {
    padding: 5rem 2rem;
    background: rgb(250, 250, 250);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

a.tech-card {
    text-decoration: none;
    color: inherit;
}

.tech-card {
    padding: 1.75rem 1.5rem;
    background: white;
    border-radius: 2rem;
    border: 0.1rem solid rgb(163, 163, 163);
    text-align: center;
    transition: transform 300ms ease, box-shadow 300ms ease;
    cursor: pointer;
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.07);
}

.tech-logo {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.tech-logo img { width: 2.5rem; height: 2.5rem; object-fit: contain; }

.tech-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: rgb(53, 53, 53);
    margin-bottom: 0.4rem;
}

.tech-card p {
    font-size: 0.82rem;
    color: rgb(130, 130, 130);
    line-height: 1.5;
}

/* ── Download Section ── */
#download {
    padding: 6rem 2rem;
    background: rgb(53, 53, 53);
    text-align: center;
    color: white;
}

#download .section__text__p1 { color: rgba(255,255,255,0.5); }
#download .title { color: white; }

#download p.subtitle {
    color: rgba(255,255,255,0.7);
    font-size: 1rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.6rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: "Poppins", sans-serif;
    text-decoration: none;
    transition: all 300ms ease;
    border: 0.1rem solid rgba(255,255,255,0.3);
    color: white;
    background: rgba(255,255,255,0.1);
}

.store-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
    text-decoration: none;
    color: white;
}

.store-btn-icon { font-size: 1.4rem; display: flex; align-items: center; }
.store-btn-icon img { width: 1.4rem; height: 1.4rem; object-fit: contain; }

.download-note {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.4);
    margin-top: 1rem;
}

/* ── Footer ── */
footer {
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgb(230, 230, 230);
}

footer p {
    font-size: 0.85rem;
    color: rgb(163, 163, 163);
}

footer a {
    color: rgb(85, 85, 85);
    font-weight: 500;
}

footer a:hover { color: rgb(53, 53, 53); }

/* ── Privacy link in nav ── */
.nav-privacy {
    font-size: 0.85rem;
    color: rgb(130, 130, 130);
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .about-content { grid-template-columns: 1fr; gap: 2rem; }
    .formats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    #desktop-nav { display: none; }
    #hamburger-nav { display: flex; }

    .app-name { font-size: 2.5rem; }
    .app-tagline { font-size: 1rem; }

    #hero { padding: 4rem 1.5rem 3rem; }
    #features, #about, #formats, #tech, #download { padding: 3.5rem 1.5rem; }

    .title { font-size: 2rem; }

    .formats-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr; }

    .btn-container { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 280px; justify-content: center; }

    .download-buttons { flex-direction: column; align-items: center; }
    .store-btn { width: 100%; max-width: 280px; justify-content: center; }
}