@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --primary: #ff6b00;
    --primary-dark: #cc5500;
    --primary-glow: rgba(255,107,0,.22);
    --bg: #0d0d0f;
    --card: rgba(22,22,24,.85);
    --border: rgba(255,255,255,.08);
    --text: #f0f0f0;
    --muted: #888;
    --success: #22c55e;
    --danger: #ef4444;
}

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

/* Đổi font-family ở đây thành Inter */
html, body {
    height: 100%;
    font-family: 'Inter',sans-serif;
    background: var(--bg);
    color: var(--text)
}

html, body {
    height: 100%;
    font-family: 'Outfit',sans-serif;
    background: var(--bg);
    color: var(--text)
}

/* ── Background ── */
.auth-bg {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 24px;
}

    .auth-bg::before {
        content: '';
        position: fixed;
        inset: 0;
        background: radial-gradient(ellipse 80% 60% at 20% 40%, rgba(255,107,0,.12) 0%, transparent 60%), radial-gradient(ellipse 60% 50% at 80% 70%, rgba(100,80,200,.08) 0%, transparent 60%);
        pointer-events: none;
    }

.gears {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overflow: hidden
}

.gear {
    position: absolute;
    opacity: .04;
    font-size: 200px;
    animation: spin 30s linear infinite
}

    .gear:nth-child(1) {
        top: -60px;
        left: -60px;
        animation-duration: 40s
    }

    .gear:nth-child(2) {
        bottom: -60px;
        right: -60px;
        animation-duration: 55s;
        animation-direction: reverse;
        font-size: 280px
    }

    .gear:nth-child(3) {
        top: 40%;
        left: 60%;
        font-size: 120px;
        animation-duration: 25s
    }

@keyframes spin {
    from {
        transform: rotate(0)
    }

    to {
        transform: rotate(360deg)
    }
}

/* ── Card ── */
.auth-card {
    background: var(--card);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border);
    border-radius: 24px;
    width: 100%;
    max-width: 440px;
    padding: 40px;
    box-shadow: 0 32px 80px rgba(0,0,0,.6);
    animation: fadeUp .5s ease;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

/* ── Logo ── */
.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 32px;
    text-decoration: none
}

    .auth-logo svg {
        width: 40px;
        height: 40px
    }

.auth-logo-text {
    font-size: 26px;
    font-weight: 900;
    color: var(--text)
}

    .auth-logo-text span {
        color: var(--primary)
    }

/* ── Title ── */
.auth-title {
    font-size: 24px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 6px
}

.auth-subtitle {
    color: var(--muted);
    font-size: 14px;
    text-align: center;
    margin-bottom: 28px
}

/* ── Form ── */
.form-group {
    margin-bottom: 16px
}

label.auth-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 6px
}

.auth-input-wrap {
    position: relative
}

.auth-input {
    width: 100%;
    background: rgba(255,255,255,.05);
    border: 1px solid var(--border);
    border-radius: 11px;
    padding: 12px 42px 12px 44px;
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: border-color .2s,box-shadow .2s;
}

    .auth-input::placeholder {
        color: var(--muted)
    }

    .auth-input:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px var(--primary-glow)
    }

    .auth-input.error-field {
        border-color: var(--danger)
    }

.input-ico {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none
}

    .input-ico svg {
        display: block;
        width: 18px;
        height: 18px
    }

.eye-btn {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    padding: 4px;
    transition: color .2s
}

    .eye-btn:hover {
        color: var(--primary)
    }

/* ── Role Selector ── */
.role-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px
}

.role-card {
    border: 1px solid var(--border);
    border-radius: 11px;
    padding: 14px 12px;
    cursor: pointer;
    text-align: center;
    transition: all .2s;
    background: rgba(255,255,255,.03)
}

    .role-card:hover {
        border-color: rgba(255,107,0,.4)
    }

    .role-card.selected {
        border-color: var(--primary);
        background: var(--primary-glow)
    }

    .role-card input {
        display: none
    }

.role-icon {
    font-size: 24px;
    margin-bottom: 4px
}

.role-label {
    font-size: 13px;
    font-weight: 600
}

.role-desc {
    font-size: 11px;
    color: var(--muted);
    margin-top: 2px
}

/* ── Button ── */
.btn-auth {
    width: 100%;
    background: var(--primary);
    border: none;
    color: #fff;
    border-radius: 11px;
    padding: 13px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    margin-top: 4px;
    transition: all .25s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

    .btn-auth:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 6px 24px var(--primary-glow)
    }

    .btn-auth:active {
        transform: translateY(0)
    }

    .btn-auth:disabled {
        opacity: .6;
        cursor: not-allowed;
        transform: none
    }

    .btn-auth.loading::after {
        content: '';
        width: 16px;
        height: 16px;
        border: 2px solid rgba(255,255,255,.4);
        border-top-color: #fff;
        border-radius: 50%;
        animation: spin .7s linear infinite
    }

/* ── Divider ── */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: var(--muted);
    font-size: 13px
}

    .auth-divider::before, .auth-divider::after {
        content: '';
        flex: 1;
        height: 1px;
        background: var(--border)
    }

/* ── Links ── */
.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--muted)
}

    .auth-footer a {
        color: var(--primary);
        text-decoration: none;
        font-weight: 600;
        transition: opacity .2s
    }

        .auth-footer a:hover {
            opacity: .8
        }

.back-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--muted);
    text-decoration: none;
    font-size: 13px;
    margin-bottom: 20px;
    transition: color .2s
}

    .back-link:hover {
        color: var(--text)
    }

/* ── Alert ── */
.auth-alert {
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 14px;
    margin-bottom: 16px;
    display: none;
    align-items: center;
    gap: 10px
}

    .auth-alert.show {
        display: flex
    }

    .auth-alert.error {
        background: rgba(239,68,68,.12);
        border: 1px solid rgba(239,68,68,.3);
        color: #fca5a5
    }

    .auth-alert.success {
        background: rgba(34,197,94,.12);
        border: 1px solid rgba(34,197,94,.3);
        color: #86efac
    }

/* ── Password Strength ── */
.pw-strength {
    margin-top: 6px
}

.pw-bars {
    display: flex;
    gap: 4px;
    margin-bottom: 4px
}

.pw-bar {
    height: 3px;
    flex: 1;
    border-radius: 3px;
    background: var(--border);
    transition: background .3s
}

    .pw-bar.weak {
        background: var(--danger)
    }

    .pw-bar.medium {
        background: var(--primary)
    }

    .pw-bar.strong {
        background: var(--success)
    }

.pw-label {
    font-size: 11px;
    color: var(--muted)
}

/* ── Modal (Popup Điều khoản) ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.modal-overlay.show {
    display: flex;
    opacity: 1;
}
.modal-content {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
    transform: translateY(30px);
    transition: transform 0.3s ease;
}
.modal-overlay.show .modal-content {
    transform: translateY(0);
}
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin: 0;
}
.close-modal {
    font-size: 28px;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}
.close-modal:hover {
    color: var(--danger);
}
.modal-body {
    padding: 24px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.6;
    color: #d1d5db;
}
.modal-body h4 {
    margin: 20px 0 10px;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
}
.modal-body p {
    margin-bottom: 12px;
}
.modal-body ul {
    padding-left: 20px;
    margin-bottom: 12px;
}
.modal-body ul li {
    margin-bottom: 6px;
}
.modal-body ul li strong {
    color: var(--text);
}
/* ── Modal (Popup Điều khoản) ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

    .modal-overlay.show {
        display: flex;
        opacity: 1;
    }

.modal-content {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 90%;
    max-width: 700px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
    transform: translateY(30px);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .modal-header h2 {
        font-size: 18px;
        font-weight: 700;
        color: var(--primary);
        margin: 0;
    }

.close-modal {
    font-size: 28px;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

    .close-modal:hover {
        color: var(--danger);
    }

.modal-body {
    padding: 24px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.6;
    color: #d1d5db;
}

    .modal-body h4 {
        margin: 20px 0 10px;
        color: #fff;
        font-size: 15px;
        font-weight: 600;
    }

    .modal-body p {
        margin-bottom: 12px;
    }

    .modal-body ul {
        padding-left: 20px;
        margin-bottom: 12px;
    }

        .modal-body ul li {
            margin-bottom: 6px;
        }

            .modal-body ul li strong {
                color: var(--text);
            }
/* Tùy chỉnh thanh cuộn cho Modal */
.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 10px; }
.modal-body::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.4); }