/* =======================================================================
   🔹 Estilo Profissional de Login - Unimaster Judô
   Design moderno e profissional para sistema de gestão de judô
   ======================================================================= */

/* ===========================
   🔹 Variáveis CSS
   =========================== */
:root {
    /* Cores do Judô */
    --judo-red: #C8102E;
    --judo-red-dark: #A00D25;
    --judo-red-light: #E63946;
    --judo-white: #FFFFFF;
    --judo-black: #1A1A1A;
    --judo-gray: #2D3436;
    --judo-gray-light: #636E72;
    
    /* Cores de UI */
    --primary: var(--judo-red);
    --primary-hover: var(--judo-red-dark);
    --text-primary: #212529;
    --text-secondary: #6C757D;
    --border-color: #DEE2E6;
    --bg-light: #F8F9FA;
    --success: #28A745;
    --danger: #DC3545;
    --warning: #FFC107;
    --info: #17A2B8;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.2);
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===========================
   🔹 Reset e Base
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--judo-black);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* ===========================
   🔹 Fundo com Padrão e Gradiente
   =========================== */
.login-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.background-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        #1A1A1A 0%,
        #2D3436 25%,
        #1A1A1A 50%,
        #2D3436 75%,
        #1A1A1A 100%
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.background-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 2px 2px, rgba(200, 16, 46, 0.15) 1px, transparent 0);
    background-size: 40px 40px;
    opacity: 0.4;
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% { background-position: 0 0; }
    100% { background-position: 40px 40px; }
}

/* Overlay escuro */
.login-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

/* ===========================
   🔹 Container Principal
   =========================== */
.login-wrapper {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem 1rem;
}

/* ===========================
   🔹 Card de Login
   =========================== */
.login-card {
    background: var(--judo-white);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    animation: cardFadeIn 0.6s ease-out;
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--judo-red) 0%, var(--judo-red-light) 50%, var(--judo-red) 100%);
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.login-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
}

/* ===========================
   🔹 Cabeçalho
   =========================== */
.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo-container {
    margin-bottom: 1.5rem;
}

.login-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    border-radius: 12px;
    background: var(--bg-light);
    padding: 12px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.login-logo:hover {
    transform: scale(1.05);
}

.logo-icon-container {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.judo-icon-wrapper {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--judo-red) 0%, var(--judo-red-dark) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    padding: 15px;
}

.judo-icon-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.judo-icon {
    font-size: 2.5rem;
    color: var(--judo-white);
    z-index: 1;
    position: relative;
}


.login-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--judo-black);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.login-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 400;
}

/* ===========================
   🔹 Mensagens Flash
   =========================== */
.flash-messages {
    margin-bottom: 1.5rem;
}

.flash-messages .alert {
    border-radius: 12px;
    border: none;
    padding: 0.875rem 1rem;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
}

.flash-messages .alert i {
    font-size: 1.1rem;
}

/* ===========================
   🔹 Formulário
   =========================== */
.login-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
}

.form-label i {
    color: var(--judo-red);
    font-size: 1rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    z-index: 2;
    pointer-events: none;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--judo-white);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--judo-red);
    box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.1);
    background: var(--judo-white);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* ===========================
   🔹 Botão de Login
   =========================== */
.btn-login {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--judo-red) 0%, var(--judo-red-dark) 100%);
    color: var(--judo-white);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--judo-red-dark) 0%, var(--judo-red) 100%);
}

.btn-login:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-login.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn-text {
    position: relative;
    z-index: 1;
}

.btn-icon {
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
    position: relative;
    z-index: 1;
}

.btn-login:hover .btn-icon {
    transform: translateX(4px);
}

/* ===========================
   🔹 Rodapé
   =========================== */
.login-footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.footer-text i {
    color: var(--success);
    font-size: 1rem;
}

.copyright {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    opacity: 0.7;
}

/* ===========================
   🔹 Responsividade
   =========================== */
@media (max-width: 768px) {
    .login-card {
        padding: 2rem 1.5rem;
        border-radius: 20px;
    }
    
    .login-title {
        font-size: 1.75rem;
    }
    
    .login-subtitle {
        font-size: 0.875rem;
    }
    
    .judo-icon-wrapper {
        width: 80px;
        height: 80px;
    }
    
    .judo-icon {
        font-size: 2.5rem;
    }
    
    .login-logo {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 576px) {
    .login-wrapper {
        padding: 1rem 0.5rem;
    }
    
    .login-card {
        padding: 1.5rem 1.25rem;
    }
    
    .login-header {
        margin-bottom: 2rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
}

/* ===========================
   🔹 Acessibilidade
   =========================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===========================
   🔹 Melhorias de Foco
   =========================== */
.form-control:focus-visible,
.btn-login:focus-visible {
    outline: 2px solid var(--judo-red);
    outline-offset: 2px;
}