/* ==========================================================================
   AiA Intelligent Platform — Login UI Premium
   Design: Elegant Light / Neural Depth
   Versão 3.0 — 2025
   ========================================================================== */

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

:root {
    --aia-purple:        #7B2FBE;
    --aia-purple-mid:    #9340D4;
    --aia-purple-hover:  #6A1FA8;
    --aia-purple-glow:   rgba(123, 47, 190, 0.15);
    --aia-purple-soft:   rgba(123, 47, 190, 0.07);
    --aia-navy:          #1A237E;
    --aia-navy-soft:     rgba(26, 35, 126, 0.06);
    --aia-cyan:          #00BCD4;
    --aia-cyan-soft:     rgba(0, 188, 212, 0.10);
    --aia-dark:          #0D0D1A;

    /* Fundo extra claro — quase branco com toque lavanda */
    --bg-page:           #F9F8FF;
    --bg-card:           #FFFFFF;
    --bg-input:          #F6F5FF;
    --bg-footer:         #F3F2FF;

    --text-primary:      #12103A;
    --text-secondary:    #6B7280;
    --text-label:        #4A4580;
    --text-hint:         #A3A0C0;

    --border-default:    rgba(123, 47, 190, 0.12);
    --border-input:      rgba(123, 47, 190, 0.16);
    --border-focus:      var(--aia-purple);

    --shadow-page:       0 0 0 1px rgba(123,47,190,0.04);
    --shadow-card:
        0 1px 2px rgba(26,35,126,0.04),
        0 4px 16px rgba(26,35,126,0.07),
        0 20px 60px rgba(26,35,126,0.10),
        0 0 0 1px rgba(123,47,190,0.08);
    --shadow-input-focus:
        0 0 0 3px rgba(123,47,190,0.14),
        0 1px 4px rgba(123,47,190,0.12);
    --shadow-btn:
        0 2px 8px rgba(123,47,190,0.25),
        0 8px 28px rgba(123,47,190,0.30),
        inset 0 1px 0 rgba(255,255,255,0.12);
    --shadow-btn-hover:
        0 4px 12px rgba(123,47,190,0.35),
        0 12px 36px rgba(123,47,190,0.38),
        inset 0 1px 0 rgba(255,255,255,0.15);

    --radius-card:       24px;
    --radius-input:      12px;
    --radius-btn:        12px;
    --easing:            cubic-bezier(0.4, 0, 0.2, 1);
    --spring:            cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html, body {
    height: 100%;
    font-family: 'Outfit', system-ui, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   FUNDO — NEURAL CANVAS + ELEMENTOS DE IA
   ========================================================================== */
.bg-scene {
    position: fixed;
    inset: 0;
    z-index: 0;
    background: var(--bg-page);
    overflow: hidden;
}

/* Gradiente direcional muito suave */
.bg-scene::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 60% at 5% 10%,  rgba(26, 35, 126, 0.055) 0%, transparent 65%),
        radial-gradient(ellipse 60% 55% at 95% 90%, rgba(123, 47, 190, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 45% 40% at 80% 10%, rgba(0, 188, 212, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 50% 45% at 20% 90%, rgba(123, 47, 190, 0.04) 0%, transparent 60%);
}

/* Canvas neural — controlado por JS */
#neuralCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.85;
}

/* Elementos decorativos geométricos flutuantes */
.geo-element {
    position: absolute;
    pointer-events: none;
    animation: geoFloat ease-in-out infinite;
}

.geo-ring {
    border-radius: 50%;
    border: 1px solid rgba(123, 47, 190, 0.12);
    animation-name: geoFloat;
}

.geo-ring-1 {
    width: 280px; height: 280px;
    top: -80px; left: -80px;
    animation-duration: 18s;
    animation-delay: 0s;
    border-color: rgba(26, 35, 126, 0.10);
}
.geo-ring-1::after {
    content: '';
    position: absolute;
    inset: 24px;
    border-radius: 50%;
    border: 1px solid rgba(26, 35, 126, 0.06);
}

.geo-ring-2 {
    width: 200px; height: 200px;
    bottom: 40px; right: -40px;
    animation-duration: 22s;
    animation-delay: -7s;
    border-color: rgba(123, 47, 190, 0.09);
}
.geo-ring-2::after {
    content: '';
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    border: 1px solid rgba(123, 47, 190, 0.05);
}

.geo-ring-3 {
    width: 120px; height: 120px;
    top: 45%; right: 8%;
    animation-duration: 15s;
    animation-delay: -4s;
    border-color: rgba(0, 188, 212, 0.12);
}

.geo-hex {
    width: 60px; height: 60px;
    animation-name: geoFloat, hexSpin;
    animation-timing-function: ease-in-out, linear;
}

.geo-hex svg {
    width: 100%;
    height: 100%;
}

.geo-hex-1 {
    top: 15%; left: 8%;
    animation-duration: 20s, 40s;
    animation-delay: -3s, 0s;
    opacity: 0.5;
}
.geo-hex-2 {
    bottom: 15%; right: 12%;
    animation-duration: 25s, 55s;
    animation-delay: -12s, -10s;
    opacity: 0.4;
}

.geo-cross {
    width: 20px; height: 20px;
    animation-name: geoFloat;
}
.geo-cross::before, .geo-cross::after {
    content: '';
    position: absolute;
    background: rgba(123, 47, 190, 0.18);
    border-radius: 2px;
}
.geo-cross::before { width: 100%; height: 2px; top: 50%; transform: translateY(-50%); }
.geo-cross::after  { width: 2px; height: 100%; left: 50%; transform: translateX(-50%); }

.geo-cross-1 { top: 30%; left: 5%; animation-duration: 14s; animation-delay: -2s; }
.geo-cross-2 { top: 70%; right: 6%; animation-duration: 19s; animation-delay: -9s; }
.geo-cross-3 { top: 12%; right: 20%; animation-duration: 17s; animation-delay: -5s; }

/* Partículas de dados */
.data-particle {
    position: absolute;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    color: rgba(123, 47, 190, 0.18);
    animation: particleFade ease-in-out infinite;
    pointer-events: none;
    user-select: none;
    letter-spacing: 1px;
}

.dp-1  { top: 8%;  left: 12%; animation-duration: 8s;  animation-delay: 0s;  }
.dp-2  { top: 20%; right: 15%; animation-duration: 11s; animation-delay: -3s; color: rgba(26,35,126,0.15); }
.dp-3  { bottom: 25%; left: 7%; animation-duration: 9s;  animation-delay: -5s; }
.dp-4  { bottom: 10%; right: 18%; animation-duration: 13s; animation-delay: -2s; color: rgba(0,188,212,0.2); }
.dp-5  { top: 55%; left: 3%;  animation-duration: 10s; animation-delay: -7s; color: rgba(26,35,126,0.12); }
.dp-6  { top: 35%; right: 4%; animation-duration: 12s; animation-delay: -4s; }

@keyframes geoFloat {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    25%       { transform: translateY(-12px) translateX(5px); }
    50%       { transform: translateY(-6px) translateX(-5px); }
    75%       { transform: translateY(-16px) translateX(3px); }
}

@keyframes hexSpin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes particleFade {
    0%, 100% { opacity: 0; transform: translateY(0); }
    20%, 80% { opacity: 1; }
    50%       { transform: translateY(-8px); }
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */
.login-container {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px;
}

/* ==========================================================================
   CARD PRINCIPAL
   ========================================================================== */
.login-card {
    width: 100%;
    max-width: 430px;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    animation: cardIn 0.75s var(--spring) both;
    position: relative;
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(40px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Faixa topo com gradiente da marca animado */
.card-accent-bar {
    height: 4px;
    background: linear-gradient(90deg,
        var(--aia-navy) 0%,
        var(--aia-purple) 40%,
        var(--aia-purple-mid) 60%,
        var(--aia-cyan) 100%
    );
    background-size: 200% 100%;
    animation: barShimmer 4s ease infinite;
}

@keyframes barShimmer {
    0%   { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* Decoração interna — círculo de luz no topo do card */
.card-glow {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 260px;
    height: 120px;
    background: radial-gradient(ellipse, rgba(123,47,190,0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.card-body {
    padding: 44px 44px 36px;
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   LOGO
   ========================================================================== */
.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 36px;
    animation: stagger1 0.6s var(--easing) 0.2s both;
}

@keyframes stagger1 {
    from { opacity: 0; transform: translateY(-14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.logo-aia {
    width: 148px;
    height: auto;
    display: block;
    margin-bottom: 14px;
    /* Sombra suave que realça a logo no fundo claro */
    filter: drop-shadow(0 4px 20px rgba(123, 47, 190, 0.18));
}

/* Badge de status — "Plataforma Online" */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(0, 188, 212, 0.08);
    border: 1px solid rgba(0, 188, 212, 0.22);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #007A8C;
}

.status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--aia-cyan);
    box-shadow: 0 0 6px rgba(0, 188, 212, 0.7);
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.6; transform: scale(1.3); }
}

/* ==========================================================================
   DIVISOR ELEGANTE
   ========================================================================== */
.section-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    animation: stagger2 0.6s var(--easing) 0.3s both;
}

@keyframes stagger2 {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.section-label::before,
.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-default));
}
.section-label::after {
    background: linear-gradient(90deg, var(--border-default), transparent);
}

.section-label span {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-hint);
    white-space: nowrap;
}

/* ==========================================================================
   FORMULÁRIO
   ========================================================================== */
.login-form {
    animation: stagger3 0.6s var(--easing) 0.35s both;
}

@keyframes stagger3 {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.form-group { margin-bottom: 20px; }

.form-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--text-label);
    margin-bottom: 8px;
}

.label-icon { color: var(--aia-purple); opacity: 0.7; }

.input-wrapper { position: relative; }

.form-input {
    width: 100%;
    padding: 14px 16px 14px 46px;
    background: var(--bg-input);
    border: 1.5px solid var(--border-input);
    border-radius: var(--radius-input);
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 400;
    color: var(--text-primary);
    outline: none;
    transition:
        border-color 0.25s var(--easing),
        background   0.25s var(--easing),
        box-shadow   0.25s var(--easing),
        transform    0.15s var(--easing);
    letter-spacing: 0.2px;
}

.form-input::placeholder {
    color: var(--text-hint);
    font-size: 14px;
    font-weight: 400;
}

.form-input:focus {
    border-color: var(--aia-purple);
    background: #FDFCFF;
    box-shadow: var(--shadow-input-focus);
    transform: translateY(-1px);
}

.input-icon-wrap {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-hint);
    display: flex;
    align-items: center;
    pointer-events: none;
    transition: color 0.25s var(--easing);
}

.input-wrapper:focus-within .input-icon-wrap { color: var(--aia-purple); }

/* Linha indicadora de foco — detalhe refinado */
.input-focus-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--aia-purple), var(--aia-cyan));
    border-radius: 0 0 var(--radius-input) var(--radius-input);
    transform: translateX(-50%);
    transition: width 0.3s var(--easing);
}

.input-wrapper:focus-within .input-focus-line { width: 100%; }

.form-input:-webkit-autofill,
.form-input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 100px #F6F5FF inset;
    -webkit-text-fill-color: var(--text-primary);
    border-color: var(--aia-purple);
    caret-color: var(--text-primary);
}

/* ==========================================================================
   BOTÃO
   ========================================================================== */
.login-btn {
    position: relative;
    width: 100%;
    margin-top: 6px;
    padding: 15px 24px;
    background: linear-gradient(135deg, var(--aia-purple) 0%, var(--aia-navy) 100%);
    border: none;
    border-radius: var(--radius-btn);
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fff;
    cursor: pointer;
    overflow: hidden;
    transition:
        transform    0.2s var(--spring),
        box-shadow   0.25s var(--easing);
    box-shadow: var(--shadow-btn);
}

/* Overlay de hover */
.login-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(255,255,255,0.06) 0%,
        rgba(0,188,212,0.15) 100%
    );
    opacity: 0;
    transition: opacity 0.3s var(--easing);
}

/* Efeito de shimmer no hover */
.login-btn::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    transform: skewX(-20deg);
    transition: none;
}

.login-btn:hover:not(:disabled)::before  { opacity: 1; }
.login-btn:hover:not(:disabled)::after   {
    animation: btnShimmer 0.6s var(--easing) forwards;
}
.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn-hover);
}
.login-btn:active:not(:disabled) { transform: translateY(0) scale(0.99); }

@keyframes btnShimmer {
    from { left: -100%; }
    to   { left: 160%; }
}

.btn-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-arrow {
    transition: transform 0.25s var(--spring);
}
.login-btn:hover:not(:disabled) .btn-arrow { transform: translateX(5px); }

.login-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ==========================================================================
   FEEDBACK
   ========================================================================== */
.loading {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 18px;
    color: var(--aia-purple);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(123, 47, 190, 0.15);
    border-top-color: var(--aia-purple);
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
    flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-message {
    display: none;
    align-items: flex-start;
    gap: 10px;
    margin-top: 18px;
    padding: 13px 16px;
    background: #FFF5F5;
    border: 1px solid rgba(220,53,69,0.2);
    border-left: 3px solid #dc3545;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    color: #9B1C1C;
    animation: slideError 0.3s var(--spring);
}

@keyframes slideError {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   FOOTER DO CARD
   ========================================================================== */
.card-footer {
    padding: 18px 44px 28px;
    border-top: 1px solid rgba(123, 47, 190, 0.08);
    background: var(--bg-footer);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    animation: fadeIn 0.5s var(--easing) 0.5s both;
    position: relative;
    z-index: 1;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.footer-powered {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}
.footer-powered strong {
    color: var(--aia-purple);
    font-weight: 700;
}

.footer-divider {
    width: 1px;
    height: 28px;
    background: var(--border-default);
    flex-shrink: 0;
}

.footer-partner {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    opacity: 0.6;
    transition: opacity 0.2s;
}
.footer-partner:hover { opacity: 1; }

.partner-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.logo-sz { height: 22px; width: auto; }
.logo-sz-text {
    font-size: 13px;
    font-weight: 700;
    color: var(--aia-navy);
    letter-spacing: 1px;
    display: none;
}

/* ==========================================================================
   RESPONSIVO
   ========================================================================== */
@media (max-width: 480px) {
    .card-body    { padding: 36px 28px 28px; }
    .card-footer  { padding: 16px 28px 24px; }
    .logo-aia     { width: 120px; }
    .data-particle,
    .geo-element  { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}