/* Učtuj.cz – základní designový systém
   Motiv: účetní kniha. Klidný papír, zelený inkoust účetních linek, modré razítko jako jediný výrazný akcent. */

@import url('../vendor/fonts/public-sans.css');

:root {
    --font-primary: 'Public Sans', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

    /* Barvy */
    --color-primary: #1e5a43;          /* účetní zelená */
    --color-primary-hover: #17493a;
    --color-primary-soft: rgba(30, 90, 67, 0.08);
    --color-secondary: #2f4a9a;        /* razítková modř */
    --color-success: #2e7d4f;
    --color-warning: #a8681a;
    --color-danger: #b3261e;

    /* Světlý režim */
    --bg-base: #f2f3ef;                /* papír */
    --bg-surface: #ffffff;             /* list */
    --bg-surface-glass: #ffffff;
    --bg-sunken: #f7f8f5;
    --border-color: #d8ddd5;           /* linka */
    --border-strong: #b9c2b7;
    --text-main: #1b2420;              /* inkoust */
    --text-muted: #5e6a63;
    --shadow-sm: 0 1px 0 rgba(27, 36, 32, 0.04);
    --shadow-md: 0 1px 2px rgba(27, 36, 32, 0.06);
    --shadow-lg: 0 8px 24px -12px rgba(27, 36, 32, 0.18);
    --shadow-indigo: none;
    --gradient-hero: var(--bg-base);
    --gradient-brand: linear-gradient(0deg, var(--color-primary), var(--color-primary));

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --focus-ring: 0 0 0 3px rgba(47, 74, 154, 0.35);
}

[data-theme="dark"] {
    --color-primary: #6fbf96;
    --color-primary-hover: #8ccfab;
    --color-primary-soft: rgba(111, 191, 150, 0.10);
    --color-secondary: #95a8ec;
    --color-success: #6fbf96;
    --color-warning: #e0a650;
    --color-danger: #f07a70;

    --bg-base: #111714;
    --bg-surface: #18201c;
    --bg-surface-glass: #18201c;
    --bg-sunken: #141b17;
    --border-color: #2a3530;
    --border-strong: #3a4842;
    --text-main: #e6ebe7;
    --text-muted: #9aa79f;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: 0 10px 30px -12px rgba(0, 0, 0, 0.6);
    --gradient-hero: var(--bg-base);
    --focus-ring: 0 0 0 3px rgba(149, 168, 236, 0.45);
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.55;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4 { letter-spacing: -0.015em; line-height: 1.2; }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

::selection { background: rgba(30, 90, 67, 0.18); }

/* Panel – dříve „sklo“, nyní čistý list papíru */
.glass-panel {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

/* Tlačítka */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.94rem;
    line-height: 1.2;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid transparent;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    white-space: nowrap;
}
.btn:disabled { opacity: 0.6; cursor: default; }

.btn-primary,
.btn-primary[style*="gradient"] {
    background: var(--color-primary) !important;
    color: #fff !important;
    border-color: var(--color-primary) !important;
    box-shadow: none !important;
}
[data-theme="dark"] .btn-primary,
[data-theme="dark"] .btn-primary[style*="gradient"] { color: #0f1a14 !important; }
.btn-primary:hover { background: var(--color-primary-hover) !important; border-color: var(--color-primary-hover) !important; }

.btn-secondary {
    background-color: var(--bg-surface);
    border-color: var(--border-strong);
    color: var(--text-main);
}
.btn-secondary:hover { background-color: var(--bg-sunken); border-color: var(--text-muted); }

.btn-success { background-color: var(--color-success); color: #fff; }
.btn-success:hover { filter: brightness(0.92); }
.btn-danger { background-color: transparent; color: var(--color-danger); border-color: currentColor; }
.btn-danger:hover { background-color: var(--color-danger); color: #fff; border-color: var(--color-danger); }
[data-theme="dark"] .btn-success { color: #0f1a14; }

.btn-sm { padding: 6px 10px; font-size: 0.82rem; }

/* Oznámení (toast) */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: calc(100vw - 32px);
}
.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    color: var(--text-main);
    transform: translateY(12px);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
    min-width: 280px;
    font-size: 0.92rem;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-info { border-left: 4px solid var(--color-secondary); }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* Štítky stavu */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 9px;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 999px;
    text-transform: none;
    letter-spacing: 0;
    white-space: nowrap;
}
.badge-paid { background-color: rgba(46, 125, 79, 0.12); color: var(--color-success); }
.badge-unpaid { background-color: rgba(168, 104, 26, 0.12); color: var(--color-warning); }
.badge-overdue { background-color: rgba(179, 38, 30, 0.10); color: var(--color-danger); }

/* Štítek BETA – vypadá jako razítko */
.beta-stamp {
    display: inline-flex;
    align-items: center;
    padding: 1px 7px;
    border: 2px solid var(--color-secondary);
    border-radius: 4px;
    color: var(--color-secondary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.4;
    transform: rotate(-4deg);
    opacity: 0.9;
    vertical-align: middle;
}

/* Přepínač motivu */
.theme-toggle {
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s, color 0.15s;
}
.theme-toggle:hover { background-color: var(--bg-sunken); color: var(--text-main); border-color: var(--border-color); }

/* Logo */
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-mark .ink { stroke: var(--color-primary); }
.brand-mark .dot { fill: var(--color-secondary); }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

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

/* Odkaz na provozovatele hostingu / vývoje */
.powered-by { font-size: 0.8rem; color: var(--text-muted); }
.powered-by strong { font-weight: 700; color: var(--text-main); }
.powered-by:hover strong { color: var(--color-primary); }