/* =============================================
   Xarema - Cloud Application Lab
   ============================================= */

:root {
    --ink: #14213d;
    --ink-strong: #0b1220;
    --muted: #5f6f89;
    --muted-strong: #34435c;
    --surface: #ffffff;
    --surface-soft: #f5f8fb;
    --surface-tint: #eef6f6;
    --line: #d9e3ea;
    --line-strong: #bfd0dc;
    --brand: #0e7c86;
    --brand-dark: #075a61;
    --accent: #f6b44b;
    --success: #1f8f5f;
    --error: #c94141;
    --shadow-sm: 0 8px 24px rgba(20, 33, 61, 0.08);
    --shadow-md: 0 20px 45px rgba(20, 33, 61, 0.14);
    --radius: 8px;
    --radius-sm: 6px;
    --container: 1120px;
    --transition: 180ms ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    min-height: 100vh;
    color: var(--ink);
    background: var(--surface);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    color: inherit;
}

.container {
    width: min(var(--container), calc(100% - 32px));
    margin: 0 auto;
}

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(217, 227, 234, 0.86);
    backdrop-filter: blur(18px);
}

.header-content {
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
}

.logo-section {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--ink-strong);
    text-decoration: none;
    font-weight: 800;
}

.logo {
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.title {
    font-size: 1.25rem;
    letter-spacing: 0;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
}

.site-nav a {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    padding: 0 0.95rem;
    border-radius: 999px;
    color: var(--muted-strong);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
    transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--ink-strong);
    background: var(--surface);
}

.language-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.25rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
}

.lang-btn {
    min-width: 40px;
    min-height: 34px;
    border: 0;
    border-radius: 999px;
    color: var(--muted-strong);
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 800;
    transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.lang-btn:hover,
.lang-btn:focus-visible {
    color: var(--ink-strong);
}

.lang-btn.active {
    color: var(--surface);
    background: var(--ink);
    box-shadow: 0 5px 15px rgba(20, 33, 61, 0.22);
}

.main {
    min-height: calc(100vh - 180px);
}

.hero {
    position: relative;
    overflow: hidden;
    color: var(--surface);
    background:
        linear-gradient(135deg, rgba(11, 18, 32, 0.95), rgba(15, 72, 80, 0.92)),
        radial-gradient(circle at 75% 20%, rgba(246, 180, 75, 0.26), transparent 34%),
        #0b1220;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.16);
}

.hero-grid {
    min-height: clamp(560px, 72vh, 720px);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.72fr);
    align-items: center;
    gap: clamp(2rem, 6vw, 5rem);
    padding: 5rem 0 6rem;
}

.hero-copy {
    max-width: 720px;
}

.eyebrow {
    margin-bottom: 0.9rem;
    color: var(--brand);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero .eyebrow {
    color: var(--accent);
}

.hero h1 {
    max-width: 760px;
    font-size: clamp(2.55rem, 6vw, 5rem);
    line-height: 0.98;
    letter-spacing: 0;
}

.hero-description {
    max-width: 620px;
    margin-top: 1.5rem;
    color: rgba(255, 255, 255, 0.78);
    font-size: 1.15rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 2rem;
}

.btn,
.btn-submit {
    min-height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    padding: 0 1.05rem;
    font: inherit;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn:hover,
.btn:focus-visible,
.btn-submit:hover,
.btn-submit:focus-visible {
    transform: translateY(-1px);
}

.btn-primary,
.btn-submit {
    color: var(--ink-strong);
    background: var(--accent);
    box-shadow: 0 12px 30px rgba(246, 180, 75, 0.24);
}

.btn-primary:hover,
.btn-submit:hover {
    background: #ffc46a;
}

.btn-secondary {
    color: var(--surface);
    border-color: rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.08);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
}

.hero-panel {
    width: min(100%, 430px);
    justify-self: end;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(18px);
}

.signal-header {
    height: 46px;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.signal-header span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.48);
}

.signal-header span:nth-child(2) {
    background: var(--accent);
}

.signal-header span:nth-child(3) {
    background: #5fd0a1;
}

.signal-body {
    padding: 1.35rem;
}

.signal-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.74);
    font-size: 0.9rem;
}

.signal-row strong {
    color: #5fd0a1;
}

.signal-meter {
    height: 9px;
    margin: 1rem 0 1.35rem;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
}

.signal-meter span {
    display: block;
    width: 76%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #5fd0a1, var(--accent));
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.signal-grid div {
    min-height: 96px;
    display: grid;
    align-content: space-between;
    padding: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.08);
}

.signal-grid span {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.78rem;
    font-weight: 700;
}

.signal-grid strong {
    font-size: 1.35rem;
    line-height: 1;
}

.section {
    padding: 5rem 0;
}

.section:nth-of-type(odd) {
    background: var(--surface-soft);
}

.section-heading {
    max-width: 720px;
    margin-bottom: 2rem;
}

.section-title {
    color: var(--ink-strong);
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.section-title.align-left {
    text-align: left;
}

.section-description {
    max-width: 700px;
    margin-top: 0.9rem;
    color: var(--muted);
    font-size: 1.02rem;
}

.section-description.align-left {
    text-align: left;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.app-card {
    min-height: 230px;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    padding: 1.25rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.app-card:hover {
    transform: translateY(-3px);
    border-color: var(--line-strong);
    box-shadow: var(--shadow-md);
}

.app-card h3 {
    color: var(--ink-strong);
    font-size: 1.2rem;
    line-height: 1.2;
}

.app-description {
    color: var(--muted);
    font-size: 0.95rem;
}

.app-meta-line {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.app-pill {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 0.6rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted-strong);
    background: var(--surface-soft);
    font-size: 0.78rem;
    font-weight: 800;
}

.app-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    align-items: center;
    margin-top: 0.25rem;
}

.app-link,
.github-link a,
.contact-mail,
.back-home-link {
    color: var(--brand-dark);
    text-decoration: none;
    font-weight: 850;
}

.app-link:hover,
.github-link a:hover,
.contact-mail:hover,
.back-home-link:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.app-link-secondary {
    color: var(--muted-strong);
}

.github-link {
    margin-top: 1.5rem;
}

.about-grid,
.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
}

.about-copy {
    color: var(--muted);
    font-size: 1.05rem;
}

.about-points {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.3rem;
}

.about-points span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 0.75rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted-strong);
    background: var(--surface);
    font-size: 0.86rem;
    font-weight: 800;
}

.contact {
    background: var(--surface);
}

.contact-intro {
    position: sticky;
    top: 106px;
}

.contact-form {
    display: grid;
    gap: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
}

.form-group {
    display: grid;
    gap: 0.45rem;
}

.form-group label {
    color: var(--ink-strong);
    font-size: 0.9rem;
    font-weight: 800;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 0.78rem 0.85rem;
    color: var(--ink);
    background: var(--surface-soft);
    font: inherit;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(14, 124, 134, 0.13);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.btn-submit {
    width: 100%;
}

.btn-submit:disabled {
    cursor: wait;
    opacity: 0.7;
    transform: none;
}

.form-message {
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 800;
}

.form-message.success {
    color: #155f3a;
    border: 1px solid rgba(31, 143, 95, 0.25);
    background: rgba(31, 143, 95, 0.1);
}

.form-message.error {
    color: #8a2424;
    border: 1px solid rgba(201, 65, 65, 0.25);
    background: rgba(201, 65, 65, 0.1);
}

.footer {
    color: rgba(255, 255, 255, 0.78);
    background: var(--ink-strong);
}

.footer-content {
    min-height: 112px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-text {
    font-size: 0.92rem;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.92rem;
}

.social-links a {
    color: var(--surface);
    text-decoration: none;
    font-weight: 800;
}

.social-links a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.divider {
    color: rgba(255, 255, 255, 0.36);
}

.loading {
    min-height: 140px;
    justify-content: center;
    color: var(--muted);
    text-align: center;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-card {
    animation: fadeIn 0.35s ease-out;
}

@media (max-width: 860px) {
    .header-content {
        min-height: auto;
        flex-wrap: wrap;
        padding: 0.8rem 0;
    }

    .site-nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .hero-grid,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        min-height: auto;
        padding: 4rem 0;
    }

    .hero-panel {
        justify-self: stretch;
        width: 100%;
    }

    .contact-intro {
        position: static;
    }
}

@media (max-width: 560px) {
    .container {
        width: min(var(--container), calc(100% - 24px));
    }

    .header-content {
        gap: 0.75rem;
    }

    .logo {
        width: 36px;
        height: 36px;
    }

    .title {
        font-size: 1.1rem;
    }

    .site-nav {
        overflow-x: auto;
        justify-content: flex-start;
    }

    .site-nav a {
        padding: 0 0.8rem;
        white-space: nowrap;
    }

    .hero h1 {
        font-size: 2.35rem;
    }

    .hero-actions,
    .btn {
        width: 100%;
    }

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

    .section {
        padding: 3.5rem 0;
    }

    .contact-form {
        padding: 1rem;
    }

    .footer-content {
        min-height: 140px;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}