/* Mobile-first layout for tektinkers.net
   Palette inspired by TekTinkers:
   - Deep background: #050816 (navy/space)
   - Card: #0b1020 / #111827
   - Accent warm: #f97316
   - Accent cool: #22d3ee
   - Text: soft light grays
*/

:root {
    --tt-bg: #050816;
    --tt-bg-alt: #060b18;
    --tt-surface: #111827;
    --tt-surface-soft: #0b1020;
    --tt-border-soft: rgba(148, 163, 184, 0.25);

    --tt-text-main: #e5e7eb;
    --tt-text-muted: #9ca3af;

    --tt-accent-warm: #f97316;
    --tt-accent-cool: #22d3ee;

    --tt-radius-lg: 18px;
    --tt-radius-md: 14px;
    --tt-shadow-soft: 0 16px 40px rgba(0, 0, 0, 0.6);
}

/* Base reset-ish */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(248, 250, 252, 0.06), transparent 55%),
        radial-gradient(circle at bottom right, rgba(34, 211, 238, 0.12), transparent 55%),
        var(--tt-bg);
    color: var(--tt-text-main);
    line-height: 1.6;
}

/* Global container & sections */

.container {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.section {
    padding: 3.25rem 0;
}

.section-alt {
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), rgba(5, 8, 22, 0.98));
}

.section-header {
    margin-bottom: 1.9rem;
}

.section-header h2 {
    font-size: 1.4rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0 0 0.3rem;
}

.section-header p {
    margin: 0;
    color: var(--tt-text-muted);
    max-width: 32rem;
}

/* Typography */

h1, h2, h3 {
    letter-spacing: 0.03em;
}

h1 {
    font-size: 1.9rem;
    margin: 0 0 0.75rem;
}

h2 {
    font-size: 1.4rem;
}

h3 {
    font-size: 1.1rem;
    margin-top: 0;
}

/* Links (no purple, no underlines) */

a,
a:visited {
    color: var(--tt-accent-cool);
    text-decoration: none;
}

a:hover {
    color: var(--tt-accent-warm);
}

.inline-link {
    font-weight: 500;
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
    background: linear-gradient(to bottom, rgba(5, 8, 22, 0.96), rgba(5, 8, 22, 0.86));
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 0;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
}

.brand-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/*
.brand-mark {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    background:
        radial-gradient(circle at 25% 20%, #fef3c7, #f97316);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: #111827;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.7);
}
*/

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1rem;
    font-weight: 600;
}

.brand-tagline {
    font-size: 0.78rem;
    color: var(--tt-text-muted);
}

.main-nav {
    display: flex;
    gap: 0.7rem;
    font-size: 0.88rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-nav a {
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    color: var(--tt-text-main);
    transition: background 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.main-nav a:hover {
    background: rgba(148, 163, 184, 0.2);
    color: #fefce8;
    transform: translateY(-1px);
}

/* Hero */

.hero {
    padding-top: 3.1rem;
    padding-bottom: 3.1rem;
}

/* flex container for text + image */
.hero-inner {
    display: flex;
    flex-direction: column-reverse;
    gap: 1.8rem;
    align-items: stretch;
}

.hero-content {
    max-width: 34rem;
}

.hero-lead {
    margin: 0 0 0.75rem;
    color: var(--tt-text-main);
}

.hero-sub {
    margin: 0;
    color: var(--tt-text-muted);
}

.highlight {
    color: var(--tt-accent-warm);
}

/* hero image block */

.hero-media {
    max-width: 26rem;
}

.hero-figure {
    margin: 0;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow:
        0 18px 45px rgba(0, 0, 0, 0.9),
        0 0 0 1px rgba(15, 23, 42, 0.6);
    background: radial-gradient(circle at top left, rgba(249, 115, 22, 0.12), transparent 55%),
                rgba(15, 23, 42, 0.96);
}

.hero-image {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Projects grid */

.projects-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: radial-gradient(circle at top left, rgba(34, 211, 238, 0.12), transparent 60%),
                var(--tt-surface);
    border-radius: var(--tt-radius-lg);
    padding: 1.4rem 1.3rem 1.3rem;
    box-shadow: var(--tt-shadow-soft);
    border: 1px solid var(--tt-border-soft);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}

.project-header h3 {
    margin: 0;
}

.project-type {
    margin: 0 0 0.6rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.11em;
    color: var(--tt-text-muted);
}

.project-desc {
    margin: 0 0 0.9rem;
    color: var(--tt-text-main);
}

/* Status pill */

.status-pill {
    font-size: 0.75rem;
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    border: 1px solid rgba(148, 163, 184, 0.6);
    white-space: nowrap;
}

.status-active {
    background: rgba(34, 197, 94, 0.16);
    border-color: rgba(34, 197, 94, 0.7);
    color: #bbf7d0;
}

.status-planning {
    background: rgba(148, 163, 184, 0.12);
    color: #e5e7eb;
}

.status-experimental {
    background: rgba(56, 189, 248, 0.16);
    border-color: rgba(56, 189, 248, 0.7);
    color: #bae6fd;
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-small {
    padding: 0.45rem 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--tt-accent-warm), #fb923c);
    color: #111827;
    box-shadow: var(--tt-shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
}

.btn-ghost {
    background: transparent;
    border-color: var(--tt-border-soft);
    color: var(--tt-text-muted);
}

.btn-ghost:hover {
    background: rgba(148, 163, 184, 0.1);
    color: var(--tt-text-main);
}

/* Notes section */

.notes-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.3rem;
}

.note-card {
    background: var(--tt-surface-soft);
    border-radius: var(--tt-radius-md);
    padding: 1.2rem 1.1rem;
    border: 1px solid var(--tt-border-soft);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.55);
}

.note-card p {
    margin: 0.4rem 0 0;
    color: var(--tt-text-muted);
}

/* Footer */

.site-footer {
    padding: 1.4rem 0 1.6rem;
    background: #020617;
    border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.85rem;
}

.footer-note {
    color: var(--tt-text-muted);
}

/* Responsive: larger screens */

@media (min-width: 720px) {
    h1 {
        font-size: 2.35rem;
    }

    .hero {
        padding-top: 3.6rem;
        padding-bottom: 3.6rem;
    }

    .hero-inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .hero-content {
        flex: 1.1;
    }

    .hero-media {
        flex: 0.9;
        max-width: 30rem;
    }

    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: baseline;
        gap: 1.5rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .projects-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .notes-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 960px) {
    .header-inner {
        padding-top: 0.9rem;
        padding-bottom: 0.9rem;
    }

    .brand-name {
        font-size: 1.05rem;
    }
}