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

:root {
    --bg-0: #070b12;
    --bg-1: #0e1623;
    --panel: #101b2b;
    --panel-2: #16253a;
    --text: #f4f8ff;
    --muted: #9fb5d4;
    --primary: #00d4ff;
    --primary-2: #00f0ff;
    --danger: #ff6b6b;
    --line: rgba(130, 174, 233, 0.25);
    --card-shadow: 0 24px 50px rgba(0, 0, 0, 0.35);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    min-height: 100vh;
    background:
        radial-gradient(circle at 10% 5%, rgba(0, 212, 255, 0.2), transparent 35%),
        radial-gradient(circle at 90% 0%, rgba(0, 150, 255, 0.15), transparent 35%),
        linear-gradient(165deg, var(--bg-0), #0a1220 45%, #0b111a);
}

/* LOGIN */
.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.login-box {
    max-width: 460px;
    margin: 120px auto;
    padding: 44px;
    background: linear-gradient(160deg, rgba(22, 37, 58, 0.86), rgba(8, 14, 24, 0.92));
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(12px);
}

.login-box h2 {
    margin-bottom: 28px;
    text-align: center;
    font-size: 32px;
    letter-spacing: 0.03em;
    background: linear-gradient(120deg, var(--primary), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-box input {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 14px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: rgba(11, 18, 30, 0.8);
    color: var(--text);
    font-size: 15px;
}

.login-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
}

.login-box button {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    color: #041524;
    background: linear-gradient(120deg, var(--primary), var(--primary-2));
    cursor: pointer;
}

.login-box button:hover {
    filter: brightness(1.04);
}

.login-return {
    margin-top: 16px;
    text-align: center;
}

.login-return a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.error-msg {
    background: rgba(255, 107, 107, 0.14);
    border: 1px solid rgba(255, 107, 107, 0.5);
    color: #ffc0c0;
    padding: 12px 14px;
    border-radius: 12px;
    margin-bottom: 16px;
}

/* DASHBOARD */
.admin-shell {
    max-width: 1520px;
    margin: 0 auto;
    padding: 28px;
}

.admin-topbar {
    margin-top: 28px;
    margin-bottom: 22px;
    padding: 20px 24px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: linear-gradient(155deg, rgba(22, 37, 58, 0.88), rgba(12, 19, 30, 0.9));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    box-shadow: var(--card-shadow);
}

.admin-kicker {
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.admin-topbar h1 {
    font-size: 31px;
    line-height: 1.1;
    margin-bottom: 4px;
}

.admin-subtitle {
    color: var(--muted);
    font-size: 14px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stat-pill {
    border: 1px solid rgba(0, 212, 255, 0.35);
    border-radius: 999px;
    padding: 8px 14px;
    color: #bff4ff;
    font-weight: 600;
    font-size: 13px;
    background: rgba(0, 212, 255, 0.12);
}

.logout-form {
    margin: 0;
}

.btn-logout {
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(120deg, #f05d5d, #f8686d);
    cursor: pointer;
}

.admin-workspace {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(360px, 430px);
    gap: 20px;
    align-items: start;
}

.planner-panel,
.form-box {
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    background: linear-gradient(160deg, rgba(21, 34, 53, 0.9), rgba(10, 17, 28, 0.92));
}

.planner-panel {
    padding: 18px;
}

.planner-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.planner-header h2 {
    font-size: 24px;
}

.planner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.day-column {
    border: 1px solid rgba(130, 174, 233, 0.28);
    border-radius: 16px;
    background: linear-gradient(165deg, rgba(17, 29, 45, 0.95), rgba(10, 17, 29, 0.9));
    padding: 12px;
    min-height: 260px;
}

.day-column-header {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(130, 174, 233, 0.24);
}

.day-name {
    color: #8db0df;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 11px;
    margin-bottom: 3px;
}

.day-date {
    font-size: 18px;
    font-weight: 700;
}

.day-events {
    display: grid;
    gap: 10px;
}

.schedule-card {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(130, 174, 233, 0.28);
    background: rgba(7, 13, 23, 0.8);
}

.schedule-cover {
    height: 106px;
    background:
        linear-gradient(160deg, rgba(0, 212, 255, 0.2), rgba(0, 0, 0, 0.5)),
        linear-gradient(160deg, #1d304b, #0f1b2a);
    background-size: cover;
    background-position: center;
}

.schedule-body {
    padding: 10px;
}

.schedule-body h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.schedule-body p {
    color: #b8ccea;
    font-size: 13px;
    margin-bottom: 4px;
}

.event-actions {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.btn-edit,
.btn-delete {
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    padding: 8px;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.btn-edit {
    color: #07253a;
    background: linear-gradient(120deg, var(--primary), var(--primary-2));
}

.delete-form {
    margin: 0;
}

.btn-delete {
    width: 100%;
    border: none;
    color: #fff;
    background: rgba(240, 93, 93, 0.9);
}

.empty-state {
    text-align: center;
    color: var(--muted);
    padding: 28px;
}

.editor-panel {
    position: sticky;
    top: 14px;
}

.form-box {
    padding: 20px;
}

.form-box h2 {
    margin-bottom: 14px;
    font-size: 22px;
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 700;
    color: #bdd3f3;
}

.form-group input,
.form-group textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 11px 12px;
    background: rgba(10, 17, 27, 0.85);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
}

.form-group textarea {
    min-height: 88px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
}

.file-label {
    display: block;
    border: 2px dashed rgba(0, 212, 255, 0.4);
    border-radius: 10px;
    padding: 12px;
    text-align: center;
    color: #c2ebff;
    background: rgba(0, 212, 255, 0.08);
    cursor: pointer;
    font-weight: 700;
}

.file-input {
    display: none;
}

.image-preview {
    display: block;
    margin-top: 10px;
    width: 100%;
    max-height: 180px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid rgba(130, 174, 233, 0.36);
}

.form-actions {
    margin-top: 14px;
    display: flex;
    gap: 10px;
}

.btn-submit,
.btn-back {
    flex: 1;
    border-radius: 10px;
    padding: 11px 12px;
    text-align: center;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
}

.btn-submit {
    border: none;
    color: #05253c;
    background: linear-gradient(120deg, var(--primary), var(--primary-2));
    cursor: pointer;
}

.btn-back {
    border: 1px solid var(--line);
    color: #d6e6ff;
    background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 1180px) {
    .admin-workspace {
        grid-template-columns: 1fr;
    }

    .editor-panel {
        position: static;
    }
}

@media (max-width: 760px) {
    .admin-shell {
        padding: 14px;
    }

    .admin-topbar {
        padding: 14px;
        flex-direction: column;
        align-items: flex-start;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .planner-grid {
        grid-template-columns: 1fr;
    }
}