/* Pedro Moitinho — portfolio design system (Apple-style: SF system font, glass cards) */

:root {
    --bg-body: #f2f2f7;
    --bg-card: rgba(255, 255, 255, 0.72);
    --bg-card-hover: rgba(255, 255, 255, 0.9);
    --text-primary: #1c1c1e;
    --text-secondary: #5c5c61;
    --text-tertiary: #8e8e93;
    --accent: #007aff;
    --accent-hover: #0066d6;
    --accent-contrast: #ffffff;
    --border-color: rgba(0, 0, 0, 0.08);
    --glow: rgba(0, 122, 255, 0.10);
    --radius: 20px;
    --radius-sm: 13px;
    --container: 880px;
    --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --blur: blur(34px) saturate(180%);
}

:root[data-theme="dark"] {
    --bg-body: #000000;
    --bg-card: rgba(28, 28, 30, 0.72);
    --bg-card-hover: rgba(42, 42, 45, 0.85);
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a8;
    --text-tertiary: #6e6e73;
    --accent: #0a84ff;
    --accent-hover: #409cff;
    --border-color: rgba(255, 255, 255, 0.10);
    --glow: rgba(10, 132, 255, 0.22);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-body: #000000;
        --bg-card: rgba(28, 28, 30, 0.72);
        --bg-card-hover: rgba(42, 42, 45, 0.85);
        --text-primary: #f5f5f7;
        --text-secondary: #a1a1a8;
        --text-tertiary: #6e6e73;
        --accent: #0a84ff;
        --accent-hover: #409cff;
        --border-color: rgba(255, 255, 255, 0.10);
        --glow: rgba(10, 132, 255, 0.22);
    }
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background: radial-gradient(900px 520px at 50% -8%, var(--glow), transparent 70%);
}

.container {
    position: relative;
    z-index: 1;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px 72px;
}

/* Accessibility */
.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 10px; z-index: 20;
}
.skip-link:focus { left: 16px; top: 16px; }

a { color: var(--accent); }

/* Scroll reveal — visible by default (no-JS safe) */
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.js .reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* --- Header --- */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 26px 0 12px;
}
.brand { font-size: 15px; font-weight: 600; color: var(--text-primary); text-decoration: none; line-height: 1.3; }
.brand span { display: block; font-size: 13px; font-weight: 400; color: var(--text-secondary); }
.theme-toggle {
    width: 38px; height: 38px; border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    transition: color var(--duration, 0.2s) var(--ease), border-color 0.2s var(--ease);
}
.theme-toggle:hover { color: var(--text-primary); border-color: var(--text-tertiary); }
.theme-toggle svg { width: 17px; height: 17px; }

/* --- Hero --- */
.hero { padding: 48px 0 8px; }
.hero h1 {
    font-size: clamp(33px, 6vw, 52px);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.07;
}
.hero .lead {
    margin-top: 20px;
    font-size: clamp(16px, 2.4vw, 19px);
    color: var(--text-secondary);
    max-width: 660px;
    line-height: 1.6;
}
.availability {
    display: inline-flex; align-items: center; gap: 8px;
    margin-top: 22px;
    font-size: 14px; color: var(--text-secondary);
}
.availability .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: #34c759; box-shadow: 0 0 0 4px rgba(52,199,89,0.18); flex-shrink: 0;
}

/* --- Buttons --- */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.btn {
    display: inline-flex; align-items: center; gap: 7px;
    font-size: 14.5px; font-weight: 500;
    text-decoration: none;
    padding: 11px 20px;
    border-radius: 100px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    color: var(--text-primary);
    transition: transform 0.25s var(--ease-spring), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.btn:hover { transform: translateY(-2px); border-color: var(--text-tertiary); }
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.btn-primary {
    background: var(--accent); border-color: var(--accent); color: var(--accent-contrast);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

/* --- Stats / proof strip --- */
.stats {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}
.stat {
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    padding: 20px 14px;
    text-align: center;
}
.stat-num { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; color: var(--text-primary); }
.stat-label { font-size: 12.5px; color: var(--text-secondary); margin-top: 3px; line-height: 1.35; }

/* --- Sections --- */
section { margin-top: 56px; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-title { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.section-link { font-size: 14px; color: var(--accent); text-decoration: none; white-space: nowrap; }
.section-link:hover { text-decoration: underline; }
.section-intro { color: var(--text-secondary); margin-bottom: 22px; max-width: 660px; }

/* --- Card grid --- */
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.card {
    display: block;
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 22px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s var(--ease-spring), background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.card:hover { transform: translateY(-3px); background: var(--bg-card-hover); border-color: var(--text-tertiary); }
.card-top { display: flex; align-items: center; gap: 13px; }
.card-icon {
    width: 42px; height: 42px; border-radius: 11px; flex-shrink: 0; overflow: hidden;
    background: var(--border-color);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; color: #fff;
}
.card-icon img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-icon.feirao { background: linear-gradient(135deg, #1f6f43, #2e9c5f); }
.card-name { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.card-meta { font-size: 13px; color: var(--text-tertiary); margin-top: 1px; }
.card-desc { font-size: 14.5px; color: var(--text-secondary); margin-top: 13px; line-height: 1.55; }
.card-tech { font-size: 12.5px; color: var(--text-tertiary); margin-top: 12px; }

.see-all { margin-top: 18px; }
.see-all a { font-size: 14px; color: var(--accent); text-decoration: none; }
.see-all a:hover { text-decoration: underline; }

/* --- Chips --- */
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
    font-size: 13.5px; color: var(--text-primary);
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--border-color);
    border-radius: 100px; padding: 8px 15px;
}

/* --- Tools --- */
.tools { display: grid; gap: 14px; }
.tool-group {
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
}
.tool-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-tertiary); margin-bottom: 6px; }
.tool-list { font-size: 14.5px; color: var(--text-secondary); line-height: 1.6; }

/* --- Prose (About) --- */
.prose { color: var(--text-secondary); max-width: 660px; line-height: 1.7; }
.prose + .prose { margin-top: 14px; }

/* --- Final CTA card --- */
.cta-card {
    margin-top: 60px;
    background: var(--bg-card);
    -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
}
.cta-card h2 { font-size: clamp(21px, 4vw, 27px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.25; }
.cta-card p { color: var(--text-secondary); margin-top: 12px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-card .cta-row { justify-content: center; margin-top: 24px; }

/* --- Footer --- */
.site-footer {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex; flex-wrap: wrap; gap: 12px 20px; justify-content: space-between; align-items: center;
    font-size: 13.5px; color: var(--text-tertiary);
}
.site-footer a { color: var(--text-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--text-primary); }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 620px) {
    .container { padding: 0 18px 56px; }
    .grid { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(3, 1fr); }
    .stat-num { font-size: 20px; }
    section { margin-top: 46px; }
}
@media (max-width: 380px) {
    .stats { grid-template-columns: repeat(2, 1fr); }
}