/* ============================================================
   base.css — глобальний фундамент проєкту
   Військово-академічна оливково-зелена тема (DESIGN.md)
   ============================================================ */

:root {
    --color-bg:             #0d1410;
    --color-surface:        #152019;
    --color-surface-raised: #1c2b22;
    --color-border:         #2d4235;
    --color-text:           #eaf3ec;
    --color-text-muted:     #8ca393;

    --color-primary:        #2d7a4d;
    --color-primary-hover:  #24633e;
    --color-primary-soft:   #183323;

    --color-accent:         #d4af37;
    --color-error:          #c0392b;
    --color-error-soft:     #2b1818;
    --color-success:        #27ae60;

    --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    --text-sm:   0.875rem;
    --text-md:   1rem;
    --text-lg:   1.25rem;
    --text-xl:   1.5rem;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --input-height: 48px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
    --transition: 150ms ease;

    color-scheme: dark;
}

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    font-family: var(--font-sans);
    font-size: var(--text-md);
    line-height: 1.55;
    color: var(--color-text);
    background:
        radial-gradient(1100px 500px at 15% -10%, #173322 0%, transparent 60%),
        radial-gradient(900px 500px at 85% 110%, #12291b 0%, transparent 55%),
        var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: #e5c76b;
    text-decoration: underline;
}

h1,
h2,
h3 {
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ---------- Layout ---------- */
.page {
    flex: 1;
    width: 100%;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 20, 16, 0.92);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
}

.brand-link:hover {
    color: var(--color-text);
    text-decoration: none;
}

.brand-emblem {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    background: var(--color-primary-soft);
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
    flex-shrink: 0;
    overflow: hidden;
}

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

.brand-text-block {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.brand-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.brand-sub {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-link {
    padding: 6px 12px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-primary-soft);
    text-decoration: none;
}

.nav-link--badge {
    color: var(--color-accent);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.nav-link--badge:hover {
    background: rgba(212, 175, 55, 0.08);
    color: var(--color-accent);
}

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status-dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    box-shadow: 0 0 6px rgba(39, 174, 96, 0.6);
}

.logout-form {
    display: contents;
}

.btn--compact {
    height: 36px;
    padding: 0 16px;
    font-size: 0.8rem;
}

/* ---------- Messages ---------- */
.messages-container {
    max-width: 1200px;
    margin: 16px auto 0;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.site-footer {
    padding: 20px 16px;
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    background: rgba(13, 20, 16, 0.85);
}

/* ---------- Inputs ---------- */
.input {
    width: 100%;
    height: var(--input-height);
    padding: 0 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface-raised);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}

.input::placeholder {
    color: #6d8274;
}

.input:hover {
    border-color: #405d4b;
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 122, 77, 0.35);
}

/* ---------- Form field ---------- */
.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field__label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.form-field__check {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    user-select: none;
}

.form-field__check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.form-field__error {
    font-size: var(--text-sm);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
}

.form-field__error::before {
    content: "⚠";
}

.form-field__help {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}

.has-error .input {
    border-color: var(--color-error);
}

.has-error .input:focus {
    box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.3);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: var(--input-height);
    padding: 0 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: var(--text-sm);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn--primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(45, 122, 77, 0.35);
}

.btn--primary:hover {
    background: var(--color-primary-hover);
}

.btn--outline {
    background: transparent;
    color: var(--color-text-muted);
    border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
    background: var(--color-primary-soft);
}

/* ---------- Alerts ---------- */
.alert {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.5;
}

.alert--error {
    background: var(--color-error-soft);
    color: #ff8b80;
    border: 1px solid rgba(192, 57, 43, 0.4);
}

.alert--success {
    background: #14241b;
    color: #4cd98b;
    border: 1px solid #27ae60;
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}