/* ═══════════════════════════════════════════════════════════
   Voyazo — Design System
   A warm, editorial travel aesthetic.
   ═══════════════════════════════════════════════════════════ */

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

:root {
    --bg:           #faf8f5;
    --bg-card:      #ffffff;
    --bg-warm:      #f5f0ea;
    --text:         #1a1a1a;
    --text-muted:   #6b6560;
    --text-light:   #9a938c;
    --accent:       #c45d3e;
    --accent-hover: #a94b30;
    --accent-soft:  #f8ebe6;
    --border:       #e8e3dd;
    --border-light: #f0ece7;
    --green:        #3a8a5c;
    --green-soft:   #e8f5ee;
    --blue:         #4a7fb5;
    --blue-soft:    #e8f0f8;
    --purple:       #7c5cbf;
    --purple-soft:  #f0ebf8;
    --yellow:       #c49a3e;
    --yellow-soft:  #faf3e4;
    --shadow-sm:    0 1px 3px rgba(0,0,0,.06);
    --shadow-md:    0 4px 12px rgba(0,0,0,.08);
    --shadow-lg:    0 8px 30px rgba(0,0,0,.1);
    --radius-sm:    6px;
    --radius:       10px;
    --radius-lg:    16px;
    --radius-xl:    24px;
    --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --transition:   .2s ease;
}

/* ── Dark Theme ──────────────────────────────────────────── */
[data-theme="dark"] {
    --bg:           #141211;
    --bg-card:      #1e1c1a;
    --bg-warm:      #252220;
    --text:         #ede9e4;
    --text-muted:   #9a938c;
    --text-light:   #6b6560;
    --accent:       #e07050;
    --accent-hover: #c45d3e;
    --accent-soft:  rgba(224,112,80,.12);
    --border:       #353230;
    --border-light: #2a2826;
    --green:        #5aad7a;
    --green-soft:   rgba(90,173,122,.12);
    --blue:         #6a9fd5;
    --blue-soft:    rgba(106,159,213,.12);
    --purple:       #9c7cdf;
    --purple-soft:  rgba(156,124,223,.12);
    --yellow:       #d4aa4e;
    --yellow-soft:  rgba(212,170,78,.12);
    --shadow-sm:    0 1px 3px rgba(0,0,0,.2);
    --shadow-md:    0 4px 12px rgba(0,0,0,.3);
    --shadow-lg:    0 8px 30px rgba(0,0,0,.4);
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    transition: background-color .3s ease, color .3s ease;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
img { max-width: 100%; display: block; }
input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .55rem .75rem;
    background: var(--bg-card);
    color: var(--text);
    transition: border-color var(--transition);
    width: 100%;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ── Typography ───────────────────────────────────────────── */
.font-display { font-family: var(--font-display); }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.25; }

/* ── Layout ───────────────────────────────────────────────── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 1.25rem; }
.container-narrow { max-width: 780px; margin: 0 auto; padding: 0 1.25rem; }

/* ── Navbar ───────────────────────────────────────────────── */
.nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(250,248,245,.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    padding: .75rem 0;
}
[data-theme="dark"] .nav {
    background: rgba(20,18,17,.85);
}
.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1080px; margin: 0 auto; padding: 0 1.25rem;
}
.nav-brand {
    font-family: var(--font-display);
    font-size: 1.35rem; font-weight: 700;
    color: var(--text);
    display: flex; align-items: center; gap: .5rem;
}
.nav-brand .brand-text { letter-spacing: -.01em; }
.nav-brand .brand-text span { color: var(--accent); }
.nav-user {
    display: flex; align-items: center; gap: .75rem;
    font-size: .875rem; color: var(--text-muted);
}
.nav-user img {
    width: 32px; height: 32px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--border);
}
.nav-link {
    font-size: .875rem; color: var(--text-muted);
    padding: .35rem .75rem; border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-link:hover { color: var(--accent); background: var(--accent-soft); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .6rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 500; font-size: .875rem;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent); color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary {
    background: var(--bg-warm); color: var(--text); border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border-light); }
.btn-ghost {
    background: transparent; color: var(--text-muted);
    padding: .4rem .6rem;
}
.btn-ghost:hover { color: var(--accent); background: var(--accent-soft); }
.btn-danger { background: #f5e6e6; color: #c44; }
.btn-danger:hover { background: #c44; color: #fff; }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-lg { padding: .75rem 1.75rem; font-size: 1rem; }
.btn-icon { padding: .45rem; border-radius: var(--radius-sm); }

/* ── Cards ────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: all .3s ease;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

/* ── Tags / Pills ─────────────────────────────────────────── */
.tag {
    display: inline-flex; align-items: center; gap: .25rem;
    padding: .2rem .6rem;
    border-radius: 100px;
    font-size: .75rem; font-weight: 500;
    letter-spacing: .01em;
}
.tag-bus      { background: var(--blue-soft);   color: var(--blue); }
.tag-hotel    { background: var(--purple-soft); color: var(--purple); }
.tag-explore  { background: var(--green-soft);  color: var(--green); }
.tag-food     { background: var(--yellow-soft); color: var(--yellow); }
.tag-activity { background: var(--accent-soft); color: var(--accent); }
.tag-default  { background: var(--bg-warm);     color: var(--text-muted); }

/* ── Modal ────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(0,0,0,.4);
    backdrop-filter: blur(4px);
    display: none; align-items: center; justify-content: center;
    padding: 1rem;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 2rem;
    width: 100%; max-width: 520px;
    box-shadow: var(--shadow-lg);
    animation: modalIn .25s ease;
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
.modal h3 { margin-bottom: 1.25rem; font-size: 1.25rem; }
.modal .form-group { margin-bottom: 1rem; }
.modal label {
    display: block; font-size: .8rem; font-weight: 500;
    color: var(--text-muted); margin-bottom: .3rem;
    text-transform: uppercase; letter-spacing: .04em;
}
.modal .form-actions {
    display: flex; gap: .75rem; justify-content: flex-end; margin-top: 1.5rem;
}

/* ── Toast / Flash ────────────────────────────────────────── */
.toast {
    position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 300;
    background: var(--text); color: #fff;
    padding: .75rem 1.25rem;
    border-radius: var(--radius);
    font-size: .875rem;
    animation: toastIn .3s ease;
}
@keyframes toastIn {
    from { opacity: 0; transform: translateY(10px); }
}

/* ── Utilities ────────────────────────────────────────────── */
.text-muted   { color: var(--text-muted); }
.text-light   { color: var(--text-light); }
.text-accent  { color: var(--accent); }
.text-sm      { font-size: .8rem; }
.text-center  { text-align: center; }
.mt-1  { margin-top: .5rem; }
.mt-2  { margin-top: 1rem; }
.mt-3  { margin-top: 1.5rem; }
.mt-4  { margin-top: 2rem; }
.mb-1  { margin-bottom: .5rem; }
.mb-2  { margin-bottom: 1rem; }
.mb-3  { margin-bottom: 1.5rem; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }
.flex  { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.hidden { display: none !important; }

/* ── Theme Toggle ────────────────────────────────────────── */
.theme-toggle {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-warm);
    color: var(--text-muted);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: all .25s ease;
    flex-shrink: 0;
}
.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: rotate(15deg);
}
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-moon,
:root:not([data-theme="dark"]) .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ── Dark mode form overrides ────────────────────────────── */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--bg-warm);
    color: var(--text);
    border-color: var(--border);
}
[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
[data-theme="dark"] ::placeholder { color: var(--text-light); }

/* ── Nav Invite Badge ─────────────────────────────────────── */
.nav-invites {
    position: relative;
    display: inline-flex; align-items: center; gap: .2rem;
}
.invite-badge {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 18px; height: 18px;
    padding: 0 5px;
    border-radius: 100px;
    background: #e74c3c;
    color: #fff;
    font-size: .65rem;
    font-weight: 700;
    line-height: 1;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
    .container, .container-narrow { padding: 0 1rem; }
    .modal { padding: 1.5rem; border-radius: var(--radius-lg); }
    .hide-mobile { display: none; }
}