/* ============================================================
   Sistema de Inscrição — Estilos Premium
   Paleta: Grafite / Azul-escuro + Gelo + Destaque Ciano
   ============================================================ */

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

:root {
    /* Cores base */
    --color-bg-deep:       #0a0e1a;
    --color-bg-mid:        #111827;
    --color-bg-card:       rgba(17, 24, 39, 0.65);
    --color-bg-input:      rgba(255, 255, 255, 0.04);
    --color-bg-input-focus:rgba(255, 255, 255, 0.07);

    /* Superfícies glass */
    --glass-border:        rgba(255, 255, 255, 0.08);
    --glass-border-hover:  rgba(255, 255, 255, 0.14);
    --glass-shadow:        0 8px 32px rgba(0, 0, 0, 0.37);
    --glass-blur:          blur(20px);

    /* Texto */
    --color-text-primary:  #f1f5f9;
    --color-text-secondary:#94a3b8;
    --color-text-muted:    #64748b;
    --color-placeholder:   #475569;

    /* Destaque */
    --color-accent:        #38bdf8;
    --color-accent-hover:  #0ea5e9;
    --color-accent-glow:   rgba(56, 189, 248, 0.25);
    --color-accent-soft:   rgba(56, 189, 248, 0.12);

    /* Estados */
    --color-success:       #34d399;
    --color-success-bg:    rgba(52, 211, 153, 0.1);
    --color-error:         #f87171;
    --color-error-bg:      rgba(248, 113, 113, 0.1);

    /* Tipografia */
    --font-family:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs:        0.75rem;
    --font-size-sm:        0.875rem;
    --font-size-base:      1rem;
    --font-size-lg:        1.125rem;
    --font-size-xl:        1.5rem;
    --font-size-2xl:       2rem;

    /* Espaçamento */
    --space-xs:            0.5rem;
    --space-sm:            0.75rem;
    --space-md:            1rem;
    --space-lg:            1.5rem;
    --space-xl:            2rem;
    --space-2xl:           3rem;

    /* Bordas e transições */
    --radius-sm:           8px;
    --radius-md:           12px;
    --radius-lg:           20px;
    --radius-full:         9999px;
    --transition:          0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-deep);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── Fundo decorativo ─────────────────────────────────────── */
.bg-decoration {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-decoration__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.45;
    animation: float 12s ease-in-out infinite;
}

.bg-decoration__orb--1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #1e3a5f 0%, transparent 70%);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.bg-decoration__orb--2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #0c4a6e 0%, transparent 70%);
    bottom: -10%;
    left: -5%;
    animation-delay: -4s;
}

.bg-decoration__orb--3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -8s;
}

.bg-decoration__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%       { transform: translate(20px, -30px) scale(1.05); }
    66%       { transform: translate(-15px, 20px) scale(0.95); }
}

/* ── Layout principal ─────────────────────────────────────── */
.page-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--space-xl) var(--space-md);
}

/* ── Card glassmorphism ───────────────────────────────────── */
.form-card {
    width: 100%;
    max-width: 640px;
    background: var(--color-bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    padding: var(--space-2xl);
    animation: cardEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ── Cabeçalho ────────────────────────────────────────────── */
.form-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.form-header__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-accent-soft);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.form-header__badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.8); }
}

.form-header__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, #f1f5f9 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-header__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    max-width: 420px;
    margin: 0 auto;
}

/* ── Alertas ────────────────────────────────────────────────── */
.alert-box {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
    border: 1px solid transparent;
    animation: cardEnter 0.4s ease both;
}

.alert-box[hidden] {
    display: none;
}

.alert--success {
    background: var(--color-success-bg);
    border-color: rgba(52, 211, 153, 0.25);
    color: var(--color-success);
}

.alert--error {
    background: var(--color-error-bg);
    border-color: rgba(248, 113, 113, 0.25);
    color: var(--color-error);
}

.alert-box strong {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 2px;
}

.alert-box p {
    font-size: var(--font-size-sm);
    opacity: 0.85;
    color: var(--color-text-secondary);
}

.alert-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ── Formulário ─────────────────────────────────────────────── */
.form-section {
    margin-bottom: var(--space-xl);
}

.form-section__title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--glass-border);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group--full {
    grid-column: 1 / -1;
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.form-group:focus-within .form-label {
    color: var(--color-accent);
}

/* ── Inputs ───────────────────────────────────────────────── */
.form-input,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg-input);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    outline: none;
    transition:
        border-color var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

.form-input::placeholder {
    color: var(--color-placeholder);
}

.form-input:hover,
.form-select:hover {
    border-color: var(--glass-border-hover);
    background: var(--color-bg-input-focus);
}

.form-input:focus,
.form-select:focus {
    border-color: var(--color-accent);
    background: var(--color-bg-input-focus);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.75rem;
}

.form-select option {
    background: var(--color-bg-mid);
    color: var(--color-text-primary);
}

/* ── Erros de campo ───────────────────────────────────────── */
.form-group.has-error .form-input,
.form-group.has-error .form-select {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.form-group.has-error .form-label {
    color: var(--color-error);
}

.field-error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: 4px;
    animation: cardEnter 0.2s ease both;
}

/* ── Checkboxes customizados ──────────────────────────────── */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.checkbox-item {
    position: relative;
}

.checkbox-item__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.checkbox-item__label {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-input);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition:
        background var(--transition),
        border-color var(--transition),
        color var(--transition),
        box-shadow var(--transition);
    user-select: none;
}

.checkbox-item__label:hover {
    background: var(--color-bg-input-focus);
    border-color: var(--glass-border-hover);
    color: var(--color-text-primary);
}

.checkbox-item__box {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    border: 2px solid var(--glass-border-hover);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        border-color var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

.checkbox-item__box svg {
    width: 14px;
    height: 14px;
    stroke: white;
    stroke-width: 3;
    opacity: 0;
    transform: scale(0.5);
    transition:
        opacity var(--transition),
        transform var(--transition);
}

.checkbox-item__input:focus-visible + .checkbox-item__label {
    box-shadow: 0 0 0 3px var(--color-accent-glow);
    border-color: var(--color-accent);
}

.checkbox-item__input:checked + .checkbox-item__label {
    background: var(--color-accent-soft);
    border-color: rgba(56, 189, 248, 0.3);
    color: var(--color-text-primary);
}

.checkbox-item__input:checked + .checkbox-item__label .checkbox-item__box {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 12px var(--color-accent-glow);
}

.checkbox-item__input:checked + .checkbox-item__label .checkbox-item__box svg {
    opacity: 1;
    transform: scale(1);
}

/* ── Campos condicionais ──────────────────────────────────── */
.conditional-group {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transform: translateY(-8px);
    transition:
        max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        opacity var(--transition),
        transform var(--transition),
        margin var(--transition);
    margin-top: 0;
}

.conditional-group.is-visible {
    max-height: 220px;
    opacity: 1;
    transform: translateY(0);
    margin-top: var(--space-md);
}

.conditional-group.is-hiding {
    max-height: 0;
    opacity: 0;
    transform: translateY(-8px);
    margin-top: 0;
}

.conditional-group__inner {
    padding: var(--space-lg);
    background: rgba(56, 189, 248, 0.04);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}

.conditional-group__label {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.conditional-group__label svg {
    width: 14px;
    height: 14px;
}

/* ── Botão de envio ───────────────────────────────────────── */
.form-actions {
    margin-top: var(--space-xl);
}

.btn-submit {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 1rem var(--space-xl);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: #0a0e1a;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        opacity var(--transition);
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-accent-glow);
}

.btn-submit:hover::before {
    opacity: 1;
}

.btn-submit:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px var(--color-accent-glow);
}

.btn-submit:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.btn-submit svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}

.btn-submit:hover svg {
    transform: translateX(3px);
}

/* ── Rodapé ─────────────────────────────────────────────────── */
.form-footer {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--glass-border);
}

.form-footer p {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ── Responsividade ─────────────────────────────────────────── */
@media (max-width: 600px) {
    .form-card {
        padding: var(--space-xl) var(--space-lg);
        border-radius: var(--radius-md);
    }

    .form-header__title {
        font-size: var(--font-size-xl);
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .form-group--full {
        grid-column: 1;
    }

    .page-wrapper {
        padding: var(--space-md);
        align-items: flex-start;
        padding-top: var(--space-xl);
    }
}

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