/* Auth styles — classic premium design system */

.auth-container {
    padding: 2.5rem;
    text-align: left;
}

.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: grid;
    place-items: center;
    padding: 1.25rem;
}

.auth-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 20, 25, 0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.auth-modal-panel {
    position: relative;
    width: min(100%, 460px);
    z-index: 1;
}

.auth-modal.auth-intro-active .auth-modal-backdrop {
    animation: auth-backdrop-in 260ms ease-out;
}

.auth-modal.auth-intro-active .auth-modal-panel {
    animation: auth-panel-intro 560ms cubic-bezier(0.22, 1, 0.36, 1);
    transform-origin: top center;
}

@keyframes auth-backdrop-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes auth-panel-intro {
    0% {
        opacity: 0;
        transform: translateY(-22px) scale(0.94);
    }
    60% {
        opacity: 1;
        transform: translateY(2px) scale(1.01);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-modal-panel .auth-container.card.glass-panel {
    max-width: none;
    margin: 0;
    width: 100%;
}

.auth-modal-close {
    position: absolute;
    top: 0.85rem;
    right: 0.85rem;
    z-index: 10;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    font-size: 1.35rem;
    line-height: 1;
    color: var(--color-charcoal);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.auth-modal-close:hover {
    background: #dc2626;
    color: #fff;
}

body.modal-open {
    overflow: hidden;
}

.welcome-intro {
    position: fixed;
    inset: 0;
    z-index: 2400;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.welcome-intro-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(9, 15, 22, 0.48);
    backdrop-filter: blur(9px);
    -webkit-backdrop-filter: blur(9px);
}

.welcome-intro-card {
    position: relative;
    z-index: 1;
    width: min(560px, 94vw);
    padding: 1.9rem 1.6rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.55);
    background: linear-gradient(155deg, rgba(107, 114, 128, 0.34), rgba(191, 198, 210, 0.24), rgba(255, 255, 255, 0.24));
    box-shadow: 0 22px 56px rgba(8, 19, 31, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.62);
    backdrop-filter: blur(14px) saturate(145%);
    -webkit-backdrop-filter: blur(14px) saturate(145%);
    text-align: center;
}

.welcome-intro-kicker {
    margin: 0 0 0.45rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
    color: #475569;
}

#welcome-intro-text {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 4.2vw, 2.4rem);
    line-height: 1.2;
    color: #0f172a;
}

.welcome-intro.welcome-intro-active .welcome-intro-backdrop {
    animation: welcome-fade-in 260ms ease-out;
}

.welcome-intro.welcome-intro-active .welcome-intro-card {
    animation: welcome-card-in 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes welcome-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes welcome-card-in {
    0% {
        opacity: 0;
        transform: translateY(16px) scale(0.94);
    }
    58% {
        opacity: 1;
        transform: translateY(-2px) scale(1.02);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--color-smoke);
    font-size: 1rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-ink);
}

.form-group input {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.48);
    outline: none;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.62), rgba(235, 242, 250, 0.44));
    backdrop-filter: blur(12px) saturate(145%);
    -webkit-backdrop-filter: blur(12px) saturate(145%);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.72);
    transition: border-color 220ms ease, box-shadow 220ms ease, background 220ms ease, transform 220ms ease;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-ink);
}

.form-group input::placeholder {
    color: #64748b;
}

.form-group input:hover {
    border-color: rgba(255, 255, 255, 0.68);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.72), rgba(238, 245, 252, 0.52));
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.11), inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.form-group input:focus {
    border-color: rgba(10, 132, 255, 0.6);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.84), rgba(241, 247, 255, 0.72));
    box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.18), 0 12px 28px rgba(10, 132, 255, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.84);
    transform: translateY(-1px);
}

.auth-submit {
    padding: 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
    width: 100%;
    margin-top: 0.5rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.95rem;
    color: var(--color-smoke);
}

.auth-footer a {
    color: var(--color-accent);
    font-weight: 600;
    text-decoration: none;
    margin-left: 0.35rem;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-error {
    margin-top: 1.25rem;
    padding: 1rem;
    background: rgba(220, 38, 38, 0.08);
    color: #b91c1c;
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 0.95rem;
}

@media (max-width: 640px) {
    .auth-modal {
        padding: 0.75rem;
    }

    .auth-container {
        padding: 1.75rem;
    }
}