/* base.css — mobile-first, min-width: 360px */

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

:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-danger: #dc2626;
  --color-warning: #d97706;
  --color-success: #16a34a;
  --color-info: #0284c7;
  --color-text: #1e293b;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  --radius: 8px;
  --shadow: 0 1px 4px rgba(0,0,0,.08);
  --font: system-ui, -apple-system, sans-serif;
}

html { font-size: 16px; }
body { font-family: var(--font); background: var(--color-bg);
       color: var(--color-text); min-height: 100vh; }

/* ---- Container ---- */
.container { width: 100%; max-width: 1200px; margin: 0 auto;
             padding: 0 1rem; }

/* ---- Navbar ---- */
.navbar { background: var(--color-surface); border-bottom: 1px solid var(--color-border);
          padding: .75rem 1rem; display: flex; align-items: center;
          justify-content: space-between; flex-wrap: wrap; gap: .5rem; }
.navbar__brand { display: flex; align-items: center; gap: .75rem; }
.navbar__logo { font-weight: 700; font-size: 1.1rem; color: var(--color-primary);
                text-decoration: none; }
.navbar__toggle { display: flex; flex-direction: column; gap: 5px; background: none;
                  border: none; cursor: pointer; padding: .25rem; min-width: 44px;
                  min-height: 44px; justify-content: center; align-items: center; }
.navbar__toggle span { display: block; width: 22px; height: 2px;
                        background: var(--color-text); border-radius: 2px; }
.navbar__menu { display: none; flex-direction: column; gap: .25rem; width: 100%;
                list-style: none; padding: .5rem 0; }
.navbar__menu.is-open { display: flex; }
.navbar__link { display: block; padding: .6rem .75rem; border-radius: var(--radius);
                text-decoration: none; color: var(--color-text); font-size: .95rem; }
.navbar__link:hover { background: var(--color-bg); }
.navbar__link--active { background: var(--color-bg); color: var(--color-primary);
                        font-weight: 700; box-shadow: inset 3px 0 0 var(--color-primary); }
.navbar__link--logout { color: var(--color-danger); }
.navbar__user { display: flex; align-items: center; gap: .5rem; padding: .6rem .75rem; }
.navbar__username { font-size: .9rem; font-weight: 500; }
.navbar__badge { font-size: .7rem; padding: .15rem .45rem; border-radius: 99px;
                 font-weight: 600; text-transform: uppercase; }
.navbar__badge--admin { background: #dbeafe; color: #1d4ed8; }
.navbar__badge--viewer { background: #f0fdf4; color: #15803d; }

/* ---- Main content ---- */
.main-content { padding: 1.25rem 0; }

/* ---- Flash messages ---- */
.flash-container { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1rem; }
.flash { display: flex; justify-content: space-between; align-items: flex-start;
         padding: .75rem 1rem; border-radius: var(--radius); font-size: .9rem; }
.flash--danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.flash--warning { background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }
.flash--success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.flash--info    { background: #e0f2fe; color: #075985; border: 1px solid #7dd3fc; }
.flash__close { background: none; border: none; cursor: pointer; font-size: 1.2rem;
                line-height: 1; min-width: 28px; min-height: 28px; padding: 0; }

/* ---- Auth page ---- */
.page--auth { display: flex; align-items: center; justify-content: center;
              min-height: 100vh; padding: 1rem; }
.auth-wrapper { width: 100%; max-width: 420px; }
.auth-card { background: var(--color-surface); border-radius: var(--radius);
             box-shadow: var(--shadow); padding: 2rem 1.5rem; }
.auth-card__title { font-size: 1.5rem; font-weight: 700; color: var(--color-primary);
                    text-align: center; margin-bottom: .25rem; }
.auth-card__subtitle { text-align: center; color: var(--color-muted);
                       font-size: .9rem; margin-bottom: 1.5rem; }

/* ---- Forms ---- */
.form { display: flex; flex-direction: column; gap: 1rem; }
.form__group { display: flex; flex-direction: column; gap: .35rem; }
.form__group--inline { flex-direction: row; align-items: center; gap: .5rem; }
.form__label { font-size: .875rem; font-weight: 500; color: var(--color-text); }
.form__label--inline { font-size: .875rem; }
.form__input { padding: .6rem .75rem; border: 1px solid var(--color-border);
               border-radius: var(--radius); font-size: 1rem; width: 100%;
               transition: border-color .15s; }
.form__input:focus { outline: none; border-color: var(--color-primary);
                     box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.form__group--error .form__input { border-color: var(--color-danger); }
.form__error { font-size: .8rem; color: var(--color-danger); }
.form__checkbox { width: 18px; height: 18px; accent-color: var(--color-primary); }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; justify-content: center;
       padding: .65rem 1.25rem; border-radius: var(--radius); font-size: 1rem;
       font-weight: 500; border: none; cursor: pointer; text-decoration: none;
       min-height: 44px; transition: background .15s; }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); }
.btn--full { width: 100%; }

/* ---- Page header ---- */
.page-header { margin-bottom: 1.5rem; }
.page-header__title { font-size: 1.4rem; font-weight: 700; margin-bottom: .25rem; }
.page-header__subtitle { color: var(--color-muted); font-size: .95rem; }

/* ---- Responsive: tablet 768px ---- */
@media (min-width: 768px) {
  .navbar__toggle { display: none; }
  .navbar__menu { display: flex; flex-direction: row; align-items: center;
                  width: auto; padding: 0; }
  .navbar__link--active { box-shadow: none; border-bottom: 3px solid var(--color-primary);
                           border-radius: 0; padding-bottom: calc(.6rem - 3px); }
  .main-content { padding: 2rem 0; }
  .auth-card { padding: 2.5rem 2rem; }
}

/* ---- Responsive: desktop 1024px ---- */
@media (min-width: 1024px) {
  .container { padding: 0 1.5rem; }
  .main-content { padding: 2.5rem 0; }
}

/* ---- Mobile: hide top navbar, space for bottom nav ---- */
@media (max-width: 767px) {
  .navbar { display: none; }
  .main-content { padding-bottom: 4.5rem; }
}