/* ===== CSO Solar — Login Page Styles ===== */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0a1628;
    overflow: hidden;
}

/* ===== Background Effects ===== */
.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.sun-glow {
    position: absolute;
    top: -180px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.25) 0%, rgba(245, 166, 35, 0.08) 40%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.8; transform: translateX(-50%) scale(1); }
    50% { opacity: 1; transform: translateX(-50%) scale(1.05); }
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: grid-shift 20s linear infinite;
}

@keyframes grid-shift {
    0% { transform: translateY(0); }
    100% { transform: translateY(60px); }
}

/* ===== Login Card ===== */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: rgba(15, 25, 50, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(245, 166, 35, 0.2);
    border-radius: 20px;
    padding: 48px 40px 36px;
    box-shadow: 
        0 0 60px rgba(245, 166, 35, 0.08),
        0 25px 50px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: card-appear 0.6s ease-out;
}

@keyframes card-appear {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ===== Logo ===== */
.login-logo {
    text-align: center;
    margin-bottom: 16px;
}

.login-logo-img {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 4px 12px rgba(245, 166, 35, 0.3));
    animation: logo-float 3s ease-in-out infinite;
}

@keyframes logo-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.login-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.login-subtitle {
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
    font-weight: 400;
    margin-bottom: 36px;
}

/* ===== Form ===== */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-field label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
}

.field-icon {
    font-size: 0.9rem;
}

.form-field input {
    width: 100%;
    padding: 14px 18px;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    outline: none;
    transition: all 0.25s ease;
}

.form-field input::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.form-field input:focus {
    border-color: rgba(245, 166, 35, 0.6);
    background: rgba(245, 166, 35, 0.04);
    box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.1);
}

/* ===== Error ===== */
.login-error {
    padding: 12px 16px;
    background: rgba(220, 53, 69, 0.12);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 10px;
    color: #ff6b7a;
    font-size: 0.85rem;
    text-align: center;
    font-weight: 500;
}

/* ===== Button ===== */
.login-btn {
    width: 100%;
    padding: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #0a1628;
    background: linear-gradient(135deg, #f5a623, #f7c15e);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 8px;
    letter-spacing: 0.02em;
}

.login-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #e69a1e, #f5b94e);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(245, 166, 35, 0.35);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-spinner {
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(10, 22, 40, 0.2);
    border-top-color: #0a1628;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Footer ===== */
.login-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.login-footer p {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.25);
}

/* ===== Shake Animation ===== */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 50%, 90% { transform: translateX(-6px); }
    30%, 70% { transform: translateX(6px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .login-card {
        padding: 36px 24px 28px;
        border-radius: 16px;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .form-field input {
        padding: 12px 14px;
    }
}