/* ============================================
   CUSTOM CSS STYLES - PROFILE WEBSITE
   Updated: <?php echo date('Y-m-d'); ?>
   Author: Md. Golam Rabbani
   ============================================ */

/* CUSTOM ANIMATIONS */
@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0) rotate(0deg); 
    }
    50% { 
        transform: translateY(-30px) rotate(15deg); 
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
    }
    50% { 
        opacity: 0.5; 
    }
}

@keyframes spin {
    0% { 
        transform: rotate(0deg); 
    }
    100% { 
        transform: rotate(360deg); 
    }
}

@keyframes bounce {
    0%, 100% { 
        transform: translateY(0); 
    }
    50% { 
        transform: translateY(-10px); 
    }
}

/* ANIMATION CLASSES */
.animate-slide-in {
    animation: slideIn 0.3s ease-out forwards;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.animate-float {
    animation: float 20s infinite ease-in-out;
}

.animate-pulse {
    animation: pulse 2s infinite ease-in-out;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-bounce {
    animation: bounce 1s infinite ease-in-out;
}

/* TRANSITION UTILITIES */
.transition-all {
    transition-property: all;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

.transition-transform {
    transition-property: transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

.transition-opacity {
    transition-property: opacity;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

/* ROTATE UTILITIES */
.rotate-90 {
    transform: rotate(90deg);
}

.rotate-180 {
    transform: rotate(180deg);
}

.rotate-270 {
    transform: rotate(270deg);
}

/* SERVICE ICONS */
.service-icon-bg {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-icon-bg::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 20px;
    background: inherit;
    filter: blur(10px);
    opacity: 0.3;
    z-index: -1;
}

.service-icon-bg:hover {
    transform: scale(1.1) rotate(5deg);
}

/* GLASS MORPHISM EFFECTS */
.glass-morphism {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

.glass-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    z-index: 1;
    border-radius: 24px 24px 0 0;
}

.glass-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(31, 38, 135, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}

/* GRADIENT TEXT EFFECTS */
.pf-gradient-text {
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-image: linear-gradient(to right, #3b82f6, #8b5cf6);
}

.gradient-text-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-accent {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-success {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* GRADIENT BACKGROUNDS */
.gradient-bg-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-bg-accent {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.gradient-bg-success {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.gradient-bg-dark {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

/* BUTTON STYLES */
.btn-gradient {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-gradient:hover::before {
    opacity: 1;
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(79, 172, 254, 0.4);
}

.btn-outline-gradient {
    background: transparent;
    color: white;
    border: 2px solid transparent;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.btn-outline-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: -1;
}

.btn-outline-gradient:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* BADGE STYLES */
.badge-gradient {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.2), rgba(0, 242, 254, 0.2));
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 50px;
    padding: 8px 20px;
    font-weight: 600;
    font-size: 14px;
    color: white;
    backdrop-filter: blur(10px);
}

.badge-gradient-primary {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
    border-color: rgba(102, 126, 234, 0.3);
}

.badge-gradient-success {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.2), rgba(56, 249, 215, 0.2));
    border-color: rgba(67, 233, 123, 0.3);
}

/* LOADING ANIMATIONS */
.loading-spinner {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 3px solid #fff;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

.loading-spinner-primary {
    border-top-color: #667eea;
}

.loading-spinner-accent {
    border-top-color: #4facfe;
}

/* CUSTOM SCROLLBAR */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

/* FORM STYLES */
.form-input-glass {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    color: white;
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-input-glass:focus {
    outline: none;
    border-color: #4facfe;
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.2);
    background: rgba(255, 255, 255, 0.12);
}

.form-label {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
    font-weight: 500;
}

.error-field {
    border-color: #f5576c !important;
    box-shadow: 0 0 0 3px rgba(245, 87, 108, 0.2) !important;
}

.error-message {
    color: #f5576c;
    font-size: 12px;
    margin-top: 4px;
}

.success-message {
    color: #43e97b;
    font-size: 12px;
    margin-top: 4px;
}

/* BANGLA FONT SUPPORT */
.font-bangla {
    font-family: 'SolaimanLipi', 'Noto Sans Bengali', 'Siyam Rupali', Arial, sans-serif;
}

.bangla-text {
    font-family: 'SolaimanLipi', 'Noto Sans Bengali', 'Siyam Rupali', Arial, sans-serif;
    line-height: 1.8;
}

/* TESTIMONIAL STYLES */
.testimonial-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 30px;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 30px;
    font-size: 80px;
    color: rgba(79, 172, 254, 0.3);
    font-family: serif;
    line-height: 1;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid #4facfe;
    overflow: hidden;
}

/* STATS COUNTER */
.stat-counter {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 5px;
    background: linear-gradient(135deg, #fff, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

/* FEATURES LIST */
.features-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.features-list li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.9);
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list li i {
    color: #43e97b;
    margin-right: 12px;
    font-size: 14px;
}

/* SOCIAL ICONS */
.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    color: white;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    transform: translateY(-3px);
}

/* TIMELINE */
.timeline-item {
    position: relative;
    padding-left: 30px;
    margin-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #4facfe;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 12px;
    bottom: -30px;
    width: 2px;
    background: rgba(255, 255, 255, 0.2);
}

.timeline-item:last-child::after {
    display: none;
}

/* SKILL BARS */
.skill-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 10px;
    margin: 15px 0;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    border-radius: 10px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    position: relative;
    transition: width 1.5s ease-in-out;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* LANGUAGE TOGGLE */
.language-toggle-btn {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 24px;
    padding: 10px 20px;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.language-toggle-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(31, 38, 135, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
}

.language-toggle-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 24px 24px 0 0;
}

/* WHATSAPP BUTTON */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.4);
    background: #1da851;
}

/* BACK TO TOP */
.back-to-top {
    position: fixed;
    bottom: 90px;
    right: 20px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(79, 172, 254, 0.4);
}

/* RESPONSIVE UTILITIES */
@media (max-width: 768px) {
    .mobile-hidden {
        display: none !important;
    }
    
    .mobile-full-width {
        width: 100% !important;
    }
    
    .mobile-text-center {
        text-align: center !important;
    }
    
    .mobile-padding {
        padding: 20px !important;
    }
    
    .mobile-margin {
        margin: 10px 0 !important;
    }
    
    .stat-counter {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .glass-card {
        border-radius: 20px;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem !important;
    }
    
    .section-title {
        font-size: 1.8rem !important;
    }
    
    .stat-counter {
        font-size: 2rem;
    }
    
    .btn-gradient, .btn-outline-gradient {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* PRINT STYLES */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        color: black !important;
        background: white !important;
    }
    
    .glass-card, .glass-morphism {
        background: white !important;
        border: 1px solid #ddd !important;
        box-shadow: none !important;
        backdrop-filter: none !important;
    }
    
    .gradient-text-primary,
    .gradient-text-secondary,
    .gradient-text-accent,
    .gradient-text-success {
        color: black !important;
        background: none !important;
        -webkit-text-fill-color: black !important;
    }
}

/* DARK MODE ADJUSTMENTS */
@media (prefers-color-scheme: dark) {
    body {
        color-scheme: dark;
    }
}

/* HIGH CONTRAST MODE */
@media (prefers-contrast: high) {
    .glass-card {
        border: 2px solid white;
    }
    
    .btn-gradient, .btn-outline-gradient {
        border: 2px solid white;
    }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .animate-slide-in,
    .animate-fade-in,
    .animate-float,
    .animate-pulse,
    .animate-spin,
    .animate-bounce {
        animation: none !important;
    }
}