* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    height: 100%;
}

body {
    margin: 0;
    min-height: 100%;
    font-family: Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(0, 170, 255, 0.12), transparent 30%),
        radial-gradient(circle at bottom right, rgba(140, 82, 255, 0.12), transparent 35%),
        #0b1020;
    color: #eef3ff;
    overflow-x: hidden;
}

body.menu-open {
    overflow: hidden;
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

button,
input,
textarea,
select {
    font: inherit;
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
}

.mobile-header {
    display: none;
}

.sidebar-backdrop {
    display: none;
}

.sidebar {
    background: rgba(10, 16, 32, 0.88);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px;
    backdrop-filter: blur(16px);
    min-width: 0;
}

.logo-card {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 30px;
    padding: 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
}

.logo-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #38bdf8, #8b5cf6);
    color: white;
    font-weight: bold;
    flex: 0 0 48px;
}

.logo-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.2;
}

.logo-sub {
    font-size: 12px;
    color: #9fb0d0;
    margin-top: 2px;
}

.menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.menu-link {
    padding: 12px 14px;
    color: #dce7ff;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    transition: 0.2s;
    word-break: break-word;
}

.menu-link:hover {
    background: rgba(255, 255, 255, 0.09);
}

.menu-link.danger {
    color: #ffb4b4;
}

.main-content {
    padding: 28px;
    min-width: 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.topbar h1 {
    margin: 0;
    font-size: 28px;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.user-chip {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    background: rgba(255,255,255,0.05);
    padding: 12px 16px;
    border-radius: 14px;
    max-width: 100%;
    word-break: break-word;
}

.user-chip small {
    color: #9fb0d0;
}

.hero-card,
.glass-card,
.module-card,
.tile-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border-radius: 22px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.hero-card {
    padding: 24px;
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start;
}

.hero-card h2 {
    margin: 4px 0 10px;
    line-height: 1.2;
}

.hero-badge {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(56,189,248,0.15);
    color: #8ee7ff;
    font-weight: 700;
    white-space: nowrap;
}

.eyebrow {
    color: #9fb0d0;
    font-size: 12px;
    letter-spacing: 1px;
}

.glass-card {
    padding: 22px;
    margin-bottom: 24px;
}

.form-grid {
    display: grid;
    gap: 16px;
}

.form-grid label {
    display: grid;
    gap: 8px;
}

.form-grid span {
    color: #c7d5ef;
    font-size: 14px;
}

input[type="text"],
input[type="password"],
input[type="file"],
textarea,
select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.06);
    border-radius: 14px;
    color: white;
    min-height: 48px;
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.btn-primary,
.btn-secondary,
.btn-danger,
.btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 10px 16px;
    border-radius: 14px;
    border: 0;
    cursor: pointer;
    font-weight: 700;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    color: white;
}

.btn-secondary {
    background: rgba(255,255,255,0.08);
    color: white;
}

.btn-danger {
    background: rgba(255, 82, 82, 0.18);
    color: #ffd5d5;
}

.btn-link {
    background: rgba(56,189,248,0.12);
    color: #8ee7ff;
}

.alert {
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 16px;
    overflow-wrap: anywhere;
}

.alert.error {
    background: rgba(255, 82, 82, 0.15);
    color: #ffd1d1;
}

.alert.success {
    background: rgba(34, 197, 94, 0.15);
    color: #bbffd1;
}

.muted {
    color: #9fb0d0;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.tile-card {
    padding: 20px;
    color: #eef3ff;
    transition: transform 0.2s ease;
    min-width: 0;
}

.tile-card:hover {
    transform: translateY(-2px);
}

.tile-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.tile-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.2;
}

.tile-desc {
    color: #b9c9e6;
    font-size: 14px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.info-list {
    display: grid;
    gap: 10px;
    color: #dce7ff;
    overflow-wrap: anywhere;
}

.empty-box {
    padding: 20px;
    border-radius: 16px;
    background: rgba(255,255,255,0.04);
    color: #9fb0d0;
    margin-bottom: 24px;
}

.module-list {
    display: grid;
    gap: 16px;
}

.module-card {
    padding: 18px;
}

.module-head {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 14px;
    align-items: center;
    margin-bottom: 12px;
}

.module-icon {
    width: 54px;
    height: 54px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.08);
    font-size: 24px;
    flex: 0 0 54px;
}

.module-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.2;
}

.module-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: #9fb0d0;
    font-size: 13px;
    margin-top: 4px;
}

.module-desc {
    color: #dce7ff;
    margin-bottom: 16px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.module-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.status {
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.status.on {
    background: rgba(34, 197, 94, 0.15);
    color: #92ffb4;
}

.status.off {
    background: rgba(255, 184, 0, 0.15);
    color: #ffd98a;
}

.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border-radius: 22px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    padding: 28px;
}

.auth-logo {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    background: linear-gradient(135deg, #38bdf8, #8b5cf6);
    font-size: 20px;
    font-weight: 700;
}

.mobile-menu-btn,
.mobile-profile-btn {
    border: 0;
    background: rgba(255,255,255,0.08);
    color: #eef3ff;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-grid;
    place-items: center;
    font-size: 18px;
}

.mobile-profile-btn.ghost {
    visibility: hidden;
}

@media (max-width: 1200px) {
    .tile-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .mobile-header {
        position: sticky;
        top: 0;
        z-index: 1001;
        display: grid;
        grid-template-columns: 44px 1fr 44px;
        align-items: center;
        gap: 12px;
        padding: env(safe-area-inset-top) 16px 12px;
        background: rgba(10, 16, 32, 0.92);
        backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .mobile-header-title {
        font-size: 16px;
        font-weight: 700;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .sidebar-backdrop.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.45);
        z-index: 1000;
    }

    .app-shell {
        display: block;
        min-height: calc(100vh - 56px);
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: min(86vw, 320px);
        height: 100vh;
        z-index: 1002;
        transition: left 0.25s ease;
        overflow-y: auto;
        border-right: 1px solid rgba(255,255,255,0.08);
        padding-top: calc(env(safe-area-inset-top) + 20px);
    }

    .sidebar.open {
        left: 0;
    }

    .main-content {
        padding: 18px 16px 28px;
    }

    .topbar {
        display: none;
    }

    .tile-grid,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .module-head {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .hero-card {
        flex-direction: column;
        align-items: stretch;
        padding: 18px;
    }

    .hero-badge {
        align-self: flex-start;
    }

    .glass-card,
    .module-card,
    .tile-card {
        border-radius: 18px;
    }

    .module-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .module-actions form,
    .module-actions a {
        width: 100%;
    }

    .btn-primary,
    .btn-secondary,
    .btn-danger,
    .btn-link {
        width: 100%;
    }

    .user-chip {
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .auth-wrap {
        padding: 16px;
    }

    .auth-card {
        padding: 22px 18px;
        border-radius: 18px;
    }

    .main-content {
        padding: 16px 14px 24px;
    }

    .logo-card {
        margin-bottom: 20px;
    }

    .tile-card {
        padding: 18px;
    }

    .tile-title {
        font-size: 17px;
    }

    .hero-card,
    .glass-card,
    .module-card {
        padding: 16px;
    }

    .module-icon {
        width: 48px;
        height: 48px;
        font-size: 22px;
    }

    .topbar h1,
    .hero-card h2 {
        font-size: 22px;
    }
}

@media (max-width: 420px) {
    .mobile-header {
        padding-left: 12px;
        padding-right: 12px;
    }

    .main-content {
        padding-left: 12px;
        padding-right: 12px;
    }

    .menu-link {
        padding: 11px 12px;
    }

    .auth-logo {
        width: 56px;
        height: 56px;
        border-radius: 16px;
    }
}