:root {
    --primary: #25a9f4;
    --primary-hover: #1995dc;
    --background: #e6e9f4;
    --surface: #ffffff;
    --text-primary: #6c72d6;
    --text-secondary: #9ea9db;
    --outline-variant: #e0e2ec;
    --error: #ba1a1a;
    --radius-card: 20px;
    --radius-input: 24px;
    --font: 'Hanken Grotesk', system-ui, sans-serif;
}

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

body {
    font-family: var(--font);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--background);
    position: relative;
    overflow: hidden;
}

/* SVG Background elements */
.bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.bg-shape-top-right {
    position: absolute;
    top: -8%;
    right: -8%;
    width: 35%;
    max-width: 500px;
    height: auto;
    z-index: 1;
    transform: rotate(-10deg);
}

.bg-shape-bottom-left {
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 35%;
    max-width: 500px;
    height: auto;
    z-index: 1;
}

/* Centered login card */
.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

.login-card {
    background: var(--surface);
    padding: 56px 40px;
    border-radius: var(--radius-card);
    box-shadow: 0 12px 32px rgba(108, 114, 214, 0.08);
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: card-appear 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    letter-spacing: -0.01em;
    align-self: flex-start;
}

.subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 500;
    align-self: flex-start;
}

/* Form styling */
form {
    width: 100%;
    display: flex;
    flex-direction: column;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
    width: 100%;
}

/* Custom minimal bottom-border inputs */
.form-input {
    width: 100%;
    border: none;
    border-bottom: 2px solid var(--outline-variant);
    background: transparent;
    padding: 12px 4px;
    font-size: 16px;
    font-family: var(--font);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.25s ease, padding 0.25s ease;
}

.form-input::placeholder {
    color: transparent; /* Needed for floating label logic */
}

/* Focus state for input */
.form-input:focus {
    border-bottom-color: var(--primary);
}

/* Floating Label Pattern */
.form-label {
    position: absolute;
    left: 4px;
    top: 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

/* Push label up on focus or when input is filled */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Validation error messaging under inputs */
.error-message {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--error);
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
    min-height: 18px;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.error-message.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Main General Alert banner */
.general-error {
    background: #ffebeb;
    border: 1px solid rgba(186, 26, 26, 0.15);
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--error);
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 24px;
    width: 100%;
    display: none;
    align-items: center;
    gap: 8px;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

/* Rounded custom primary action button */
.btn-login {
    width: 120px;
    padding: 12px;
    background: var(--primary);
    color: white;
    font-weight: 500;
    font-size: 15px;
    border-radius: var(--radius-input);
    box-shadow: 0 4px 12px rgba(37, 169, 244, 0.3);
    transition: all 0.2s ease;
    margin-top: 16px;
    margin-bottom: 8px;
    border: none;
    cursor: pointer;
    align-self: center;
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 169, 244, 0.4);
    background: var(--primary-hover);
}

.btn-login:active {
    transform: translateY(1px);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Spinner for loading state */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s ease-in-out infinite;
    vertical-align: middle;
    margin-right: 8px;
}

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

.align-c {
    text-align: center !important;
    align-self: center !important;
    width: 100%;
}

.login-logo-container {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.login-logo {
    max-height: 48px;
    width: auto;
    object-fit: contain;
}