* {
    box-sizing: border-box;
}

:root {
    --auth-bg-deep: #0b1320;
    --auth-bg-soft: #142238;
    --auth-panel: rgba(13, 23, 39, 0.78);
    --auth-panel-border: rgba(148, 163, 184, 0.24);
    --auth-ink: #e2e8f0;
    --auth-muted: #9fb1cb;
    --auth-input-bg: rgba(15, 23, 42, 0.65);
    --auth-input-border: rgba(148, 163, 184, 0.35);
    --auth-input-focus: #14b8a6;
    --auth-brand: #0ea5a4;
    --auth-brand-strong: #0f766e;
    --auth-danger: #fda4af;
    --auth-success-bg: rgba(16, 185, 129, 0.16);
    --auth-success-border: rgba(16, 185, 129, 0.42);
    --auth-success-text: #a7f3d0;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--auth-ink);
    background:
        radial-gradient(900px 520px at 8% -12%, rgba(14, 165, 164, 0.26), transparent 72%),
        radial-gradient(760px 520px at 95% 0%, rgba(245, 158, 11, 0.15), transparent 76%),
        linear-gradient(165deg, var(--auth-bg-deep) 0%, var(--auth-bg-soft) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.auth-container {
    width: 100%;
    max-width: 430px;
}

.auth-form {
    background: var(--auth-panel);
    border: 1px solid var(--auth-panel-border);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 18px 42px rgba(2, 6, 23, 0.42);
    backdrop-filter: blur(8px);
}

.auth-center {
    text-align: center;
}

h1 {
    margin: 0 0 0.9rem;
    font-size: 1.65rem;
    line-height: 1.2;
    color: #f8fafc;
}

.auth-subtitle {
    color: var(--auth-muted);
    margin: 0 0 1.15rem;
    font-size: 0.96rem;
    line-height: 1.6;
}

.form-group {
    margin-bottom: 0.9rem;
}

label {
    display: block;
    margin-bottom: 0.45rem;
    color: #e2e8f0;
    font-weight: 600;
    font-size: 0.94rem;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 0.72rem 0.82rem;
    border: 1px solid var(--auth-input-border);
    border-radius: 0.62rem;
    font-size: 0.95rem;
    color: #f8fafc;
    background: var(--auth-input-bg);
}

input::placeholder {
    color: #8ca1bf;
}

input:focus {
    outline: none;
    border-color: var(--auth-input-focus);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.2);
}

.input-readonly {
    background: rgba(15, 23, 42, 0.45) !important;
    color: #9fb1cb !important;
}

.btn {
    display: inline-flex;
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.7rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 0.95rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(130deg, var(--auth-brand) 0%, var(--auth-brand-strong) 100%);
    color: #ecfeff;
    box-shadow: 0 12px 24px rgba(13, 148, 136, 0.3);
}

.google-auth-wrap {
    margin-bottom: 0.9rem;
}

.btn-google {
    background: #ffffff;
    color: #0f172a;
    border: 1px solid #d1d9e5;
    min-height: 46px;
    gap: 0.65rem;
    box-shadow: 0 1px 2px rgba(17, 24, 39, 0.06);
}

.btn-google:hover {
    background: #f8fafc;
    box-shadow: 0 4px 10px rgba(17, 24, 39, 0.12);
}

.btn-google:focus-visible {
    outline: 3px solid rgba(66, 133, 244, 0.35);
    outline-offset: 2px;
}

.btn-google-icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 18px;
}

.btn-google-text {
    line-height: 1;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0;
    color: #8ca1bf;
    font-size: 0.84rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(148, 163, 184, 0.32);
}

.form-footer {
    text-align: center;
    margin-top: 1rem;
    color: #9fb1cb;
}

.form-footer a,
.auth-helper a,
.auth-link-btn {
    color: #7dd3fc;
    text-decoration: none;
    font-weight: 600;
}

.form-footer a:hover,
.auth-helper a:hover,
.auth-link-btn:hover {
    color: #bae6fd;
}

.auth-helper {
    text-align: right;
    margin-bottom: 0.95rem;
}

.error {
    color: var(--auth-danger);
    margin-top: 0.25rem;
    font-size: 0.86rem;
}

.auth-alert {
    border-radius: 0.62rem;
    border: 1px solid transparent;
    padding: 0.72rem 0.8rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.auth-alert-success {
    background: var(--auth-success-bg);
    border-color: var(--auth-success-border);
    color: var(--auth-success-text);
}

.password-toggle-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.password-toggle-wrapper input {
    width: 100%;
    padding-right: 2.5rem;
}

.password-toggle-btn {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #8ca1bf;
    font-size: 1rem;
    padding: 0.2rem 0.45rem;
    transition: color 0.2s;
}

.password-toggle-btn:hover {
    color: #67e8f9;
}

.verify-icon {
    display: inline-block;
    font-size: 2.4rem;
    margin-bottom: 0.8rem;
}

.stack-gap-sm {
    margin-bottom: 0.9rem;
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font: inherit;
}