:root {
    --primary: #4F46E5;
    --primary-light: #6366F1;
    --primary-dark: #4338CA;
    --secondary: #06B6D4;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --bg-color: #0F172A;
    --card-bg: rgba(255, 255, 255, 0.95);
    --input-border: #E2E8F0;
    --input-focus: #818CF8;
    --error: #EF4444;
    --success: #10B981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    min-height: 100vh;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 20px;
}

/* Dynamic animated background */
.background-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s infinite ease-in-out alternate;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--success) 0%, transparent 70%);
    top: 30%;
    left: 40%;
    opacity: 0.3;
    animation-duration: 25s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 30px) scale(1.1); }
    100% { transform: translate(-30px, 50px) scale(0.9); }
}

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 520px;
}

/* Glassmorphism card */
.form-wrapper {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 
                inset 0 0 0 1px rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.form-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6), 
                inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.form-header {
    text-align: center;
    margin-bottom: 35px;
}

.form-header h1 {
    color: var(--text-main);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.form-header p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.5;
}

.input-group {
    margin-bottom: 22px;
}

label {
    display: block;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

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

.input-field svg {
    position: absolute;
    left: 16px;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

input {
    width: 100%;
    padding: 14px 16px 14px 46px;
    border: 1px solid var(--input-border);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    outline: none;
}

input::placeholder {
    color: #94A3B8;
}

input:hover {
    border-color: #CBD5E1;
}

input:focus {
    border-color: var(--primary);
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

input:focus + svg,
.input-field:focus-within svg {
    color: var(--primary);
}

/* Error state */
.input-group.error input {
    border-color: var(--error);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.input-group.error .input-field svg {
    color: var(--error);
}

.error-text {
    color: var(--error);
    font-size: 12px;
    margin-top: 6px;
    display: block;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

.submit-btn {
    width: 100%;
    padding: 16px;
    margin-top: 10px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px -10px rgba(79, 70, 229, 0.5);
    position: relative;
    overflow: hidden;
}

.submit-btn::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 ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -10px rgba(79, 70, 229, 0.6);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

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

.submit-btn:active {
    transform: translateY(1px);
    box-shadow: 0 5px 10px -5px rgba(79, 70, 229, 0.4);
}

/* Success state styles */
.success-message {
    text-align: center;
    animation: fadeIn 0.5s ease forwards;
}

.icon-container {
    width: 64px;
    height: 64px;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.success-message h3 {
    color: var(--text-main);
    font-size: 24px;
    margin-bottom: 10px;
}

.success-message p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 25px;
}

.reset-btn {
    background: transparent;
    border: 1px solid var(--input-border);
    color: var(--text-main);
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.reset-btn:hover {
    background: #F1F5F9;
    border-color: #CBD5E1;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    display: none;
}

.submit-btn.loading .spinner {
    display: block;
}

.submit-btn.loading span,
.submit-btn.loading svg {
    display: none;
}

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

@media (max-width: 480px) {
    .form-wrapper {
        padding: 30px 20px;
    }
    
    .form-header h1 {
        font-size: 24px;
    }
}