/* ============================================================
   Kurs-Portal – Frontend Styles
   Design: refined dark-blue + warm amber accent, mobile-first
   ============================================================ */

:root {
  --kp-bg:        #0f1623;
  --kp-surface:   #1a2336;
  --kp-surface-2: #222d42;
  --kp-border:    #2e3d55;
  --kp-accent:    #2563eb;
  --kp-accent-h:  #1d4ed8;
  --kp-gold:      #f59e0b;
  --kp-text:      #e2e8f0;
  --kp-text-muted:#7a90b0;
  --kp-danger:    #ef4444;
  --kp-success:   #22c55e;
  --kp-radius:    12px;
  --kp-radius-sm: 8px;
  --kp-shadow:    0 4px 24px rgba(0,0,0,.4);
  --kp-font:      'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Reset ─────────────────────────────────────────────────── */
.kp-wrap *, .kp-wrap *::before, .kp-wrap *::after { box-sizing: border-box; }
.kp-wrap svg {
  width: 1.2em; height: 1.2em;
  stroke: currentColor; stroke-width: 2;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0;
}

/* ── Outer wrap ─────────────────────────────────────────────── */
.kp-wrap {
  font-family: var(--kp-font);
  color: var(--kp-text);
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

/* ════════════════════ LOGIN ════════════════════════════════ */
.kp-login-card {
  background: linear-gradient(180deg, rgba(26,35,54,.98), rgba(18,27,43,.98));
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px;
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
  max-width: 440px;
  margin: 40px auto 0;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.kp-login-header {
  background: linear-gradient(180deg, #081426 0%, #0b172b 100%);
  padding: 38px 34px 26px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.kp-logo {
  margin: 0 auto 16px;
  width: 56px; height: 56px;
}
.kp-logo svg { width: 100%; height: 100%; }

.kp-login-title {
  margin: 0 0 8px;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.5px;
  color: var(--kp-text);
}

.kp-login-sub {
  margin: 0;
  font-size: .9rem;
  color: var(--kp-text-muted);
  line-height: 1.5;
}

.kp-login-form {
  padding: 28px 32px 34px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ── Fields ─────────────────────────────────────────────── */
.kp-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kp-field label {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--kp-text-muted);
}

.kp-field input {
  width: 100%;
  padding: 13px 14px;
  background: #f8fafc;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 10px;
  color: #162033;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .2s, box-shadow .2s, transform .15s;
  outline: none;
}
.kp-field input:focus {
  border-color: var(--kp-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.16);
  transform: translateY(-1px);
}
.kp-field input::placeholder { color: #6b7280; }

/* ── Buttons ─────────────────────────────────────────────── */
.kp-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: none; border-radius: var(--kp-radius-sm);
  font-family: inherit; font-size: .95rem; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: background .2s, transform .1s, box-shadow .2s;
  white-space: nowrap;
}
.kp-btn:active { transform: scale(.98); }

.kp-btn-primary {
  background: linear-gradient(180deg, #2f6ef6 0%, #245ee2 100%);
  color: #fff;
  width: 100%;
  min-height: 46px;
  border-radius: 10px;
}
.kp-btn-primary:hover { background: linear-gradient(180deg, #3b7af8 0%, #245ee2 100%); box-shadow: 0 8px 20px rgba(37,99,235,.35); }

.kp-btn-ghost {
  background: transparent;
  color: var(--kp-text-muted);
  border: 1px solid var(--kp-border);
  padding: 8px 14px;
  font-size: .85rem;
}
.kp-btn-ghost:hover { background: var(--kp-surface-2); color: var(--kp-text); }

.kp-btn-download {
  background: var(--kp-surface-2);
  color: var(--kp-text);
  border: 1px solid var(--kp-border);
  font-size: .85rem;
  padding: 8px 14px;
}
.kp-btn-download:hover { background: var(--kp-accent); color: #fff; border-color: var(--kp-accent); }

.kp-btn-danger {
  background: rgba(239,68,68,.15);
  color: var(--kp-danger);
  border: 1px solid rgba(239,68,68,.3);
  padding: 8px 10px;
}
.kp-btn-danger:hover { background: var(--kp-danger); color: #fff; }

/* ── Messages ────────────────────────────────────────────── */
.kp-error-msg {
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.3);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--kp-radius-sm);
  font-size: .9rem;
}
.kp-success-msg {
  background: rgba(34,197,94,.12);
  border: 1px solid rgba(34,197,94,.3);
  color: #86efac;
  padding: 10px 14px;
  border-radius: var(--kp-radius-sm);
  font-size: .9rem;
}

/* ── Spinner ─────────────────────────────────────────────── */
.kp-spin { animation: kp-spin 1s linear infinite; }
@keyframes kp-spin { to { transform: rotate(360deg); } }
.kp-btn-spinner svg { width: 20px; height: 20px; stroke: #fff; }

/* ════════════════════ PORTAL HEADER ══════════════════════ */
.kp-portal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 20px;
  background: var(--kp-surface);
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius);
  margin-bottom: 24px;
}
.kp-portal-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.1rem; font-weight: 700;
}
.kp-brand-icon { width: 32px; height: 32px; flex-shrink: 0; }
.kp-brand-icon svg { width: 100%; height: 100%; }

.kp-portal-user {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap;
}
.kp-user-avatar {
  width: 36px; height: 36px;
  background: var(--kp-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem; color: #fff;
  flex-shrink: 0;
}
.kp-user-name { font-size: .9rem; color: var(--kp-text-muted); }

.kp-badge {
  background: var(--kp-gold);
  color: #000;
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* ════════════════════ PORTAL BODY ══════════════════════ */
.kp-portal-body { display: flex; flex-direction: column; gap: 28px; }

.kp-section-title {
  font-size: 1.2rem; font-weight: 700;
  margin: 0 0 20px;
  color: var(--kp-text);
}

.kp-category-block { margin-bottom: 8px; }

.kp-category-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 1rem; font-weight: 600;
  color: var(--kp-gold);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--kp-border);
}

.kp-file-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 560px) {
  .kp-file-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 800px) {
  .kp-file-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.kp-file-card {
  background: var(--kp-surface);
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .2s, box-shadow .2s, transform .15s;
}
.kp-file-card:hover {
  border-color: var(--kp-accent);
  box-shadow: 0 4px 16px rgba(37,99,235,.15);
  transform: translateY(-2px);
}

.kp-file-icon {
  color: var(--kp-accent);
}
.kp-file-icon svg { width: 32px; height: 32px; }

.kp-file-title { font-weight: 600; font-size: .95rem; line-height: 1.3; }
.kp-file-desc  { font-size: .82rem; color: var(--kp-text-muted); line-height: 1.4; }
.kp-file-meta  {
  display: flex; gap: 10px; flex-wrap: wrap;
  font-size: .78rem; color: var(--kp-text-muted);
  margin-top: auto;
}
.kp-file-info { flex: 1; display: flex; flex-direction: column; gap: 4px; }

.kp-file-actions { display: flex; gap: 6px; justify-content: flex-end; }

/* ════════════════════ TABS ══════════════════════════════ */
.kp-tabs {
  display: flex;
  gap: 2px;
  background: var(--kp-bg);
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius);
  padding: 4px;
  margin-bottom: 24px;
  overflow-x: auto;
}
.kp-tab {
  flex: 1;
  padding: 10px 16px;
  background: none; border: none;
  border-radius: calc(var(--kp-radius) - 4px);
  font-family: inherit; font-size: .9rem; font-weight: 600;
  color: var(--kp-text-muted);
  cursor: pointer;
  transition: background .2s, color .2s;
  white-space: nowrap;
  min-width: 0;
}
.kp-tab:hover { color: var(--kp-text); background: var(--kp-surface-2); }
.kp-tab.active { background: var(--kp-accent); color: #fff; }

.kp-tab-content { display: none; }
.kp-tab-content.active { display: block; }

/* ════════════════════ UPLOAD PANEL ════════════════════ */
.kp-upload-panel {
  background: var(--kp-surface);
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius);
  padding: 28px;
}
.kp-form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (min-width: 560px) {
  .kp-form-row { grid-template-columns: 1fr 1fr; }
}

.kp-upload-panel .kp-field { margin-bottom: 16px; }
.kp-upload-panel .kp-field label {
  display: block; margin-bottom: 6px;
  font-size: .8rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .05em;
  color: var(--kp-text-muted);
}
.kp-upload-panel input[type="text"],
.kp-upload-panel textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--kp-bg);
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius-sm);
  color: var(--kp-text);
  font-family: inherit; font-size: .95rem;
  outline: none; resize: vertical;
  transition: border-color .2s;
}
.kp-upload-panel input:focus,
.kp-upload-panel textarea:focus {
  border-color: var(--kp-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

.kp-dropzone {
  border: 2px dashed var(--kp-border);
  border-radius: var(--kp-radius);
  padding: 32px 20px;
  text-align: center;
  color: var(--kp-text-muted);
  transition: border-color .2s, background .2s;
  cursor: pointer;
  position: relative;
}
.kp-dropzone:hover, .kp-dropzone.dragging {
  border-color: var(--kp-accent);
  background: rgba(37,99,235,.06);
  color: var(--kp-text);
}
.kp-dropzone svg { width: 36px; height: 36px; margin-bottom: 10px; }
.kp-dropzone input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.kp-browse-link { color: var(--kp-accent); text-decoration: underline; }

.kp-selected-file {
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(37,99,235,.1);
  border-radius: var(--kp-radius-sm);
  font-size: .85rem; color: var(--kp-text);
  word-break: break-all;
}

.kp-progress-wrap {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 0;
}
.kp-progress-bar-track {
  flex: 1; height: 6px;
  background: var(--kp-bg);
  border-radius: 3px;
  overflow: hidden;
}
.kp-progress-bar {
  height: 100%;
  background: var(--kp-accent);
  width: 0%;
  border-radius: 3px;
  transition: width .2s;
}

/* ════════════════════ EMPTY STATE ══════════════════════ */
.kp-empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--kp-text-muted);
}
.kp-empty-state svg { width: 48px; height: 48px; margin-bottom: 12px; opacity: .5; }
.kp-empty-state p { margin: 0; font-size: .95rem; }

/* ════════════════════ MOBILE TWEAKS ═════════════════════ */
@media (max-width: 480px) {
  .kp-login-form  { padding: 20px; }
  .kp-login-header { padding: 24px 20px 20px; }
  .kp-portal-header { padding: 12px 16px; }
  .kp-upload-panel { padding: 20px 16px; }
  .kp-file-card { padding: 14px; }
  .kp-user-name { display: none; }
}


/* Simplified login layout without field icons */
.kp-login-card-clean .kp-field { gap: 8px; }
.kp-login-card-clean .kp-field label { margin-bottom: 2px; }
@media (max-width: 480px) {
  .kp-login-card { margin-top: 20px; }
  .kp-login-header, .kp-login-form { padding-left: 20px; padding-right: 20px; }
}