:root {
  --navy: #0A0F1E;
  --navy-card: #111827;
  --navy-border: rgba(255,255,255,0.08);
  --orange: #F97316;
  --white: #FFFFFF;
  --white-60: rgba(255,255,255,0.6);
  --font: 'Inter', sans-serif;
  --r-md: 12px;
  --r-lg: 20px;
}

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

body {
  font-family: var(--font);
  background: var(--navy);
  color: var(--white);
  min-height: 100vh;
}

.screen { display: none; }
.screen.active { display: block; }

/* LOGIN */
#loginScreen {
  height: 100vh;
  display: none; align-items: center; justify-content: center;
  padding: 1rem;
}
#loginScreen.active {
  display: flex;
}

.login-box {
  background: var(--navy-card);
  padding: 3rem 2rem;
  border: 1px solid var(--navy-border);
  border-radius: var(--r-lg);
  width: 100%; max-width: 400px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.logo { text-align: center; margin-bottom: 2rem; }
.logo h2 { font-size: 1.5rem; margin-top: 1rem; font-weight: 700; }

.input-group { margin-bottom: 1.5rem; display: flex; flex-direction: column; gap: 0.5rem; }
.input-group label { font-size: 0.85rem; color: var(--white-60); font-weight: 500; }
.input-group input, .input-group select {
  width: 100%; padding: 0.8rem 1rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--navy-border);
  border-radius: var(--r-md);
  color: var(--white); font-family: var(--font);
  transition: all 0.3s;
}
.input-group input:focus, .input-group select:focus {
  outline: none; border-color: var(--orange);
  background: rgba(249,115,22,0.05);
}

.btn-primary {
  width: 100%; padding: 1rem;
  background: var(--orange); color: var(--white);
  border: none; border-radius: var(--r-md);
  font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: all 0.3s;
}
.btn-primary:hover { background: #ea580c; transform: translateY(-2px); }

.error-msg { color: #ef4444; font-size: 0.85rem; text-align: center; margin-top: 1rem; min-height: 20px; }
.form-msg { font-size: 0.9rem; margin-top: 1rem; text-align: center; }
.form-msg.success { color: #22c55e; }
.form-msg.error { color: #ef4444; }

/* DASHBOARD */
.admin-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem; background: var(--navy-card);
  border-bottom: 1px solid var(--navy-border);
}
.header-left { display: flex; align-items: center; gap: 1rem; }
.header-left h1 { font-size: 1.25rem; font-weight: 700; }

.btn-secondary {
  padding: 0.6rem 1.2rem; background: rgba(255,255,255,0.1);
  border: 1px solid var(--navy-border); color: var(--white);
  border-radius: var(--r-md); cursor: pointer; transition: 0.3s;
}
.btn-secondary:hover { background: rgba(255,255,255,0.15); }

.dashboard-content { max-width: 1000px; margin: 0 auto; padding: 2rem; }

.panel-section {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  border-radius: var(--r-lg); padding: 2rem; margin-bottom: 2rem;
}
.panel-section h2 { font-size: 1.25rem; margin-bottom: 1.5rem; font-weight: 600; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

.file-upload-box {
  position: relative; border: 2px dashed var(--navy-border);
  border-radius: var(--r-md); padding: 2rem; text-align: center;
  background: rgba(255,255,255,0.02); transition: 0.3s;
  cursor: pointer;
}
.file-upload-box:hover { border-color: var(--orange); background: rgba(249,115,22,0.05); }
.file-upload-box input[type="file"] {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: pointer;
}
.upload-placeholder { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; color: var(--white-60); pointer-events: none; }

.project-list { display: flex; flex-direction: column; gap: 1rem; }
.project-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem; background: rgba(255,255,255,0.03);
  border: 1px solid var(--navy-border); border-radius: var(--r-md);
}
.project-info { display: flex; align-items: center; gap: 1rem; }
.project-thumb { width: 60px; height: 60px; border-radius: 8px; object-fit: cover; }
.project-details h4 { font-size: 1rem; margin-bottom: 0.2rem; }
.project-details p { font-size: 0.8rem; color: var(--white-60); }
.btn-danger {
  padding: 0.5rem 1rem; background: rgba(239,68,68,0.1);
  color: #ef4444; border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--r-md); cursor: pointer; transition: 0.3s;
}
.btn-danger:hover { background: #ef4444; color: #fff; }

@media(max-width: 768px) {
  .form-grid { grid-template-columns: 1fr; }
  .dashboard-content { padding: 1rem; }
  .project-item { flex-direction: column; align-items: stretch; gap: 1rem; }
  .project-actions { display: flex; gap: 0.5rem; justify-content: flex-end; }
  .project-actions button { flex: 1; }
  .modal-content { width: 95%; margin: 10% auto; }
}

/* Modal Styling */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.8);
  display: none; justify-content: center; align-items: center; z-index: 1000;
  backdrop-filter: blur(5px);
}
.modal-content {
  background: var(--navy-card); border: 1px solid var(--navy-border);
  padding: 2rem; border-radius: var(--r-lg); width: 100%; max-width: 500px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}
.modal-content h3 { margin-bottom: 1.5rem; font-size: 1.25rem; font-weight: 600; }