/* ============================================================
   PharmaGO Dashboard - Login Page
   Modern split-screen login with animated presentation area
   ============================================================ */

/* ====== CSS VARIABLES ====== */
:root {
    --login-primary: var(--brand-primary);
    --login-primary-light: var(--brand-primary-light);
    --login-accent: var(--brand-accent);
    --login-accent-dark: var(--brand-accent-dark);
    --login-bg: #f8f9fc;
    --login-card-bg: #ffffff;
    --login-text: #2c3e50;
    --login-text-light: #7f8c8d;
    --login-border: #e8ecf1;
    --login-error: #e74c3c;
    --login-success: #2ecc71;
    --login-warning: #f39c12;
    --login-radius: 16px;
    --login-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --login-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --login-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ====== LAYOUT BASE ====== */
body.login-page {
    background: var(--login-bg);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    overflow-x: hidden;
}

.login-split {
    display: grid;
    grid-template-columns: 440px 1fr;
    min-height: 100vh;
}

/* ====== LEFT SIDE - FORM AREA ====== */
.login-form-side {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 48px 40px;
    background: var(--login-card-bg);
    position: relative;
    z-index: 2;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.06);
}

.login-form-wrapper {
    width: 100%;
    max-width: 360px;
}

/* Logo */
.login-brand {
    text-align: center;
    margin-bottom: 40px;
}

.login-brand-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    transition: transform var(--login-transition);
}

.login-brand-logo:hover {
    transform: translateY(-2px) scale(1.02);
}

.login-brand-logo img {
    max-height: 64px;
    max-width: 200px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.login-brand h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--login-primary);
    margin: 0 0 4px;
    letter-spacing: -0.5px;
}

.login-brand p {
    font-size: 14px;
    color: var(--login-text-light);
    margin: 0;
    font-weight: 500;
}

/* Alert */
.login-alert {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: loginSlideDown 0.3s ease;
}

.login-alert.alert-danger {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.login-alert.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.login-alert.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.login-alert.d-none {
    display: none !important;
}

.login-alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

/* Form */
.login-form-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--login-text);
    margin: 0 0 6px;
}

.login-form-subtitle {
    font-size: 14px;
    color: var(--login-text-light);
    margin: 0 0 32px;
}

.login-field {
    margin-bottom: 22px;
    position: relative;
}

.login-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--login-text);
    margin-bottom: 8px;
    transition: color var(--login-transition);
}

.login-field .field-input-wrap {
    position: relative;
}

.login-field .field-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #bdc3c7;
    pointer-events: none;
    transition: color var(--login-transition);
    z-index: 1;
}

.login-field .field-icon svg {
    width: 18px;
    height: 18px;
    display: block;
}

.login-field input {
    width: 100%;
    padding: 13px 14px 13px 44px;
    border: 2px solid var(--login-border);
    border-radius: 12px;
    font-size: 14px;
    font-family: inherit;
    color: var(--login-text);
    background: var(--login-bg);
    transition: border-color var(--login-transition), background var(--login-transition), box-shadow var(--login-transition);
    outline: none;
}

.login-field input::placeholder {
    color: #bdc3c7;
}

.login-field input:focus {
    border-color: var(--login-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(15, 52, 96, 0.08);
}

.login-field input:focus ~ .field-icon,
.login-field input:focus + .field-icon {
    color: var(--login-primary);
}

.login-field.has-error input {
    border-color: var(--login-error);
    background: #fef2f2;
}

.login-field.has-error input:focus {
    box-shadow: 0 0 0 4px rgba(231, 76, 60, 0.08);
}

.login-field .field-error {
    font-size: 12px;
    color: var(--login-error);
    margin-top: 6px;
    display: none;
    animation: loginSlideDown 0.2s ease;
}

.login-field.has-error .field-error {
    display: block;
}

/* Password toggle */
.login-field .password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: #bdc3c7;
    transition: color var(--login-transition);
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-field .password-toggle:hover {
    color: var(--login-primary);
}

.login-field .password-toggle svg {
    width: 18px;
    height: 18px;
}

.login-field input[type="password"],
.login-field input.has-toggle {
    padding-right: 44px;
}

/* Submit button */
.login-btn {
    width: 100%;
    padding: 14px 24px;
    background: var(--brand-login-btn-bg);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: transform var(--login-transition), box-shadow var(--login-transition), opacity var(--login-transition);
    position: relative;
    overflow: hidden;
    margin-top: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--brand-login-btn-shadow);
}

.login-btn:hover:not(:disabled)::before {
    left: 100%;
}

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

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

.login-btn .spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: loginSpin 0.6s linear infinite;
    display: none;
}

.login-btn.is-loading .spinner {
    display: block;
}

/* Footer */
.login-form-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--login-border);
}

.login-form-footer p {
    font-size: 12px;
    color: #bdc3c7;
    margin: 0;
}

.login-form-footer strong {
    color: var(--login-text-light);
}

/* ====== RIGHT SIDE - PRESENTATION AREA ====== */
.login-presentation-side {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 60px;
    overflow: hidden;
    background: var(--brand-login-bg);
}

/* Animated gradient overlay */
.login-presentation-side::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, var(--brand-login-gradient-orb1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, var(--brand-login-gradient-orb2) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, var(--brand-login-gradient-orb3) 0%, transparent 50%);
    animation: loginGradientShift 12s ease-in-out infinite alternate;
}

/* Floating orbs */
.login-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.08;
}

.login-orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--brand-login-orb1-color), transparent 70%);
    top: -10%;
    right: -5%;
    animation: loginFloat 8s ease-in-out infinite;
}

.login-orb-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #3498db, transparent 70%);
    bottom: -5%;
    left: -5%;
    animation: loginFloat 10s ease-in-out infinite reverse;
}

.login-orb-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, #9b59b6, transparent 70%);
    top: 40%;
    right: 20%;
    animation: loginFloat 7s ease-in-out infinite 2s;
}

/* Grid pattern */
.login-grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

/* Presentation content */
.login-presentation-content {
    position: relative;
    z-index: 1;
    max-width: 520px;
    text-align: center;
}

.login-presentation-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--brand-login-badge-bg);
    border: 1px solid var(--brand-login-badge-border);
    padding: 8px 20px;
    border-radius: 30px;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
}

.login-presentation-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: var(--login-accent);
    border-radius: 50%;
    animation: loginPulse 2s ease-in-out infinite;
}

.login-presentation-badge span {
    font-size: 13px;
    font-weight: 600;
    color: var(--login-accent);
    letter-spacing: 0.5px;
}

.login-presentation-content h2 {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin: 0 0 20px;
    letter-spacing: -0.5px;
}

.login-presentation-content h2 .text-gradient {
    background: linear-gradient(135deg, var(--login-accent), #3498db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-presentation-content p.lead {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    margin: 0 0 48px;
}

/* Feature cards */
.login-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    text-align: left;
}

.login-feature-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 20px;
    backdrop-filter: blur(10px);
    transition: transform var(--login-transition), background var(--login-transition), border-color var(--login-transition);
}

.login-feature-card:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.15);
}

.login-feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 18px;
}

.login-feature-icon.icon-green {
    background: rgba(46, 204, 113, 0.15);
    color: var(--login-accent);
}

.login-feature-icon.icon-blue {
    background: rgba(52, 152, 219, 0.15);
    color: #3498db;
}

.login-feature-icon.icon-purple {
    background: rgba(155, 89, 182, 0.15);
    color: #9b59b6;
}

.login-feature-icon.icon-orange {
    background: rgba(230, 126, 34, 0.15);
    color: #e67e22;
}

.login-feature-card h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 6px;
}

.login-feature-card p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
    line-height: 1.5;
}

/* ====== ANIMATIONS ====== */
@keyframes loginSpin {
    to { transform: rotate(360deg); }
}

@keyframes loginSlideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes loginGradientShift {
    0% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    100% {
        opacity: 0.8;
        transform: scale(1.1) rotate(3deg);
    }
}

@keyframes loginPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

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

/* Form entrance animation */
.login-form-wrapper {
    animation: loginFadeUp 0.6s ease-out;
}

.login-presentation-content {
    animation: loginFadeUp 0.8s ease-out 0.2s both;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
    .login-split {
        grid-template-columns: 400px 1fr;
    }

    .login-presentation-side {
        padding: 40px;
    }

    .login-presentation-content h2 {
        font-size: 32px;
    }
}

@media (max-width: 860px) {
    .login-split {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .login-presentation-side {
        order: -1;
        min-height: 280px;
        padding: 40px 32px;
    }

    .login-presentation-content h2 {
        font-size: 28px;
    }

    .login-presentation-content p.lead {
        margin-bottom: 28px;
    }

    .login-features {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .login-feature-card {
        padding: 14px;
    }

    .login-feature-card p {
        display: none;
    }

    .login-form-side {
        padding: 32px 24px 40px;
        box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.06);
    }
}

@media (max-width: 540px) {
    .login-presentation-side {
        min-height: 220px;
        padding: 32px 24px;
    }

    .login-presentation-badge {
        margin-bottom: 20px;
    }

    .login-presentation-content h2 {
        font-size: 24px;
        margin-bottom: 12px;
    }

    .login-presentation-content p.lead {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .login-features {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .login-feature-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
        margin-bottom: 8px;
    }

    .login-feature-card h4 {
        font-size: 12px;
    }

    .login-form-side {
        padding: 28px 20px 36px;
    }

    .login-brand {
        margin-bottom: 28px;
    }

    .login-brand-logo img {
        max-height: 52px;
        max-width: 160px;
    }

    .login-brand h1 {
        font-size: 24px;
    }

    .login-form-title {
        font-size: 20px;
    }

    .login-field input {
        padding: 12px 12px 12px 40px;
        font-size: 14px;
    }
}

@media (max-width: 380px) {
    .login-features {
        grid-template-columns: 1fr;
    }

    .login-feature-card {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px;
    }

    .login-feature-icon {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}