/* ========================================
   MODERN FORM STYLES
   ======================================== */

/* Form Header */
.form-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid rgba(102, 126, 234, 0.1);
}

.form-header-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
    animation: formIconFloat 3s ease-in-out infinite;
}

@keyframes formIconFloat {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-8px) rotate(5deg);
    }
}

.form-header-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.form-header-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 var(--spacing-xs);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-header-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Modern Form Group */
.form-group-modern {
    margin-bottom: var(--spacing-lg);
}

/* Input Container */
.input-container {
    position: relative;
}

/* Input Icon */
.input-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    color: rgba(255, 255, 255, 0.4);
    transition: all var(--transition-normal);
    z-index: 2;
    pointer-events: none;
}

/* Modern Input */
.form-input-modern {
    width: 100%;
    padding: 1.25rem 1.25rem 1.25rem 3.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    outline: none;
    position: relative;
    z-index: 1;
}

.form-input-modern:focus {
    background: rgba(255, 255, 255, 0.06);
    border-color: transparent;
}

.form-input-modern:focus~.input-icon {
    color: #667eea;
    transform: translateY(-50%) scale(1.1);
}

/* Floating Label */
.floating-label {
    position: absolute;
    left: 3.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-normal);
    z-index: 2;
    background: transparent;
    padding: 0 0.25rem;
}

.form-input-modern:focus~.floating-label,
.form-input-modern:not(:placeholder-shown)~.floating-label {
    top: -10px;
    left: 3rem;
    font-size: 0.75rem;
    color: #667eea;
    background: var(--dark-bg);
    padding: 0 0.5rem;
    font-weight: 600;
}

/* Input Highlight (Animated Border) */
.input-highlight {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #667eea 100%);
    background-size: 200% 100%;
    border-radius: 0 0 14px 14px;
    transform: scaleX(0);
    transition: transform var(--transition-normal);
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {

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

    50% {
        background-position: 100% 50%;
    }
}

.form-input-modern:focus~.input-highlight {
    transform: scaleX(1);
}

/* ========================================
   MODERN SUBMIT BUTTON
   ======================================== */

.submit-btn-modern {
    width: 100%;
    padding: 0;
    margin-top: var(--spacing-xl);
    background: transparent;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    height: 64px;
    font-family: inherit;
    transition: all var(--transition-normal);
}

.submit-btn-modern:hover {
    transform: translateY(-3px);
}

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

/* Button Background Gradient */
.btn-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    transition: all var(--transition-normal);
}

.submit-btn-modern:hover .btn-bg-gradient {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.6);
}

.submit-btn-modern:active .btn-bg-gradient {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Button Content */
.btn-content-modern {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    height: 100%;
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
}

/* Button Icons */
.btn-icon-modern {
    width: 24px;
    height: 24px;
    transition: all var(--transition-normal);
}

.submit-btn-modern:hover .btn-icon-modern {
    transform: rotate(-15deg) scale(1.1);
}

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateX(-10px);
}

.submit-btn-modern:hover .btn-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Button Particles */
.btn-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
    border-radius: 16px;
}

.btn-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.6s ease;
}

.btn-particles .particle:nth-child(1) {
    top: 20%;
    left: 20%;
}

.btn-particles .particle:nth-child(2) {
    top: 60%;
    left: 50%;
}

.btn-particles .particle:nth-child(3) {
    top: 40%;
    left: 80%;
}

.submit-btn-modern:hover .btn-particles .particle {
    opacity: 1;
    animation: particleBurst 0.8s ease-out;
}

@keyframes particleBurst {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }

    100% {
        transform: translate(var(--tx, 20px), var(--ty, -20px)) scale(0);
        opacity: 0;
    }
}

.btn-particles .particle:nth-child(1) {
    --tx: -30px;
    --ty: -30px;
}

.btn-particles .particle:nth-child(2) {
    --tx: 0px;
    --ty: -40px;
}

.btn-particles .particle:nth-child(3) {
    --tx: 30px;
    --ty: -30px;
}

/* Disabled State */
.submit-btn-modern:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.submit-btn-modern:disabled:hover {
    transform: none;
}

.submit-btn-modern:disabled .btn-bg-gradient {
    background: linear-gradient(135deg, #555 0%, #777 100%);
    box-shadow: none;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    .form-header-title {
        font-size: 1.25rem;
    }

    .form-header-subtitle {
        font-size: 0.9rem;
    }

    .form-input-modern {
        padding: 1.1rem 1.1rem 1.1rem 3.2rem;
        font-size: 0.95rem;
    }

    .submit-btn-modern {
        height: 56px;
    }

    .btn-content-modern {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .form-header-icon {
        width: 50px;
        height: 50px;
    }

    .form-header-icon svg {
        width: 26px;
        height: 26px;
    }

    .form-input-modern {
        padding: 1rem 1rem 1rem 3rem;
    }

    .input-icon {
        left: 14px;
        width: 20px;
        height: 20px;
    }

    .floating-label {
        left: 3rem;
        font-size: 0.9rem;
    }

    .form-input-modern:focus~.floating-label,
    .form-input-modern:not(:placeholder-shown)~.floating-label {
        left: 2.5rem;
        font-size: 0.7rem;
    }
}