/* ============================================
   Portfolio - Scrollable Stacked Layout
   Everything visible as you scroll. No tabs.
   Uses existing CSS variables from new.css
   ============================================ */

/* --- Section Wrapper --- */
.portfolio-section {
   padding: 80px 0 40px;
   position: relative;
   z-index: 2;
   background: transparent;
}

.portfolio-section .section-title {
   margin-bottom: 16px;
}

.portfolio-subtitle {
   text-align: center;
   color: var(--text-color-dark);
   font-size: 1.05rem;
   margin-bottom: 60px;
   max-width: 600px;
   margin-left: auto;
   margin-right: auto;
}

/* --- Category Headers (Web Projects / Games / Achievements) --- */
.portfolio-category {
   margin-bottom: 70px;
}

.category-header {
   display: flex;
   align-items: center;
   gap: 14px;
   margin-bottom: 36px;
   padding-bottom: 16px;
   border-bottom: 1px solid var(--border-color-dark);
}

.category-header i {
   font-size: 1.4rem;
   color: var(--primary-color);
   width: 44px;
   height: 44px;
   display: flex;
   align-items: center;
   justify-content: center;
   background: rgba(71, 206, 172, 0.1);
   border-radius: 12px;
   flex-shrink: 0;
}

.category-header h3 {
   font-size: 1.5rem;
   font-weight: 700;
   color: var(--text-color-light);
   margin: 0;
}

.category-header .category-count {
   margin-left: auto;
   margin-right: 0;
   background: rgba(71, 206, 172, 0.12);
   color: var(--primary-color);
   padding: 4px 14px;
   border-radius: 20px;
   font-size: 0.85rem;
   font-weight: 600;
   white-space: nowrap;
}

/* ============================================
   Web Projects Section
   ============================================ */
.web-projects-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
   gap: 30px;
   max-width: 1100px;
   margin: 0 auto;
}

.web-project-card {
   background: var(--gradient-card-dark-light);
   border-radius: 16px;
   overflow: hidden;
   border: 1px solid var(--border-color-dark);
   transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
   position: relative;
   display: flex;
   flex-direction: column;
}

.web-project-card::before {
   content: '';
   position: absolute;
   inset: 0;
   border-radius: 16px;
   padding: 1px;
   background: linear-gradient(135deg, rgba(71, 206, 172, 0.3), transparent 60%);
   -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
   mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
   -webkit-mask-composite: xor;
   mask-composite: exclude;
   opacity: 0;
   transition: opacity 0.4s ease;
   pointer-events: none;
}

.web-project-card:hover {
   transform: translateY(-8px);
   box-shadow: 0 20px 50px rgba(71, 206, 172, 0.15), 0 8px 20px rgba(0, 0, 0, 0.3);
   border-color: rgba(71, 206, 172, 0.4);
}

.web-project-card:hover::before {
   opacity: 1;
}

.project-thumbnail {
   position: relative;
   height: 200px;
   overflow: hidden;
   background: var(--background-color-lighter);
}

.project-thumbnail img {
   width: 100%;
   height: 100%;
   object-fit: cover;
   transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.web-project-card:hover .project-thumbnail img {
   transform: scale(1.08);
}

.project-thumbnail-overlay {
   position: absolute;
   inset: 0;
   background: linear-gradient(to top, rgba(16, 16, 20, 0.9) 0%, transparent 60%);
   opacity: 0;
   transition: opacity 0.4s ease;
   display: flex;
   align-items: flex-end;
   justify-content: center;
   padding-bottom: 20px;
}

.web-project-card:hover .project-thumbnail-overlay {
   opacity: 1;
}

.preview-btn {
   background: rgba(255, 255, 255, 0.15);
   backdrop-filter: blur(10px);
   border: 1px solid rgba(255, 255, 255, 0.25);
   color: white;
   padding: 8px 20px;
   border-radius: 10px;
   font-size: 0.85rem;
   font-weight: 500;
   cursor: pointer;
   transition: all 0.3s ease;
   font-family: 'Poppins', sans-serif;
   transform: translateY(10px);
}

.web-project-card:hover .preview-btn {
   transform: translateY(0);
}

.preview-btn:hover {
   background: var(--primary-color);
   color: var(--background-color-dark);
   border-color: var(--primary-color);
}

.preview-btn i {
   margin-right: 6px;
}

.project-info {
   padding: 24px;
   flex-grow: 1;
   display: flex;
   flex-direction: column;
}

.project-label {
   font-size: 0.75rem;
   font-weight: 600;
   text-transform: uppercase;
   color: var(--primary-color);
   letter-spacing: 1.5px;
   margin-bottom: 8px;
}

.project-name {
   font-size: 1.35rem;
   font-weight: 700;
   color: var(--text-color-light);
   margin-bottom: 10px;
   line-height: 1.3;
}

.project-description {
   font-size: 0.9rem;
   color: var(--text-color-dark);
   line-height: 1.7;
   margin-bottom: 16px;
}

.tech-stack {
   display: flex;
   flex-wrap: wrap;
   gap: 8px;
   margin-bottom: 20px;
}

.tech-badge {
   background: rgba(71, 206, 172, 0.1);
   color: var(--primary-color);
   font-size: 0.75rem;
   font-weight: 500;
   padding: 4px 12px;
   border-radius: 20px;
   border: 1px solid rgba(71, 206, 172, 0.2);
   transition: all 0.3s ease;
}

.tech-badge:hover {
   background: rgba(71, 206, 172, 0.2);
   transform: translateY(-1px);
}

.project-actions {
   display: flex;
   gap: 12px;
   margin-top: auto;
}

.project-btn {
   padding: 10px 22px;
   border-radius: 12px;
   font-size: 0.9rem;
   font-weight: 600;
   text-decoration: none;
   transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
   display: inline-flex;
   align-items: center;
   gap: 8px;
   font-family: 'Poppins', sans-serif;
   cursor: pointer;
   border: none;
}

.project-btn-primary {
   background: var(--gradient-primary-secondary);
   color: var(--background-color-dark);
}

.project-btn-primary:hover {
   box-shadow: 0 6px 20px rgba(71, 206, 172, 0.4);
   transform: translateY(-2px);
   color: var(--background-color-dark);
}

.project-btn-outline {
   background: transparent;
   border: 1px solid var(--border-color-dark);
   color: var(--text-color-dark);
}

.project-btn-outline:hover {
   border-color: var(--primary-color);
   color: var(--primary-color);
   background: rgba(71, 206, 172, 0.05);
}

/* --- Inline Preview (Expandable Iframe) --- */
.project-preview-frame {
   max-height: 0;
   overflow: hidden;
   transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
   border-top: 0px solid var(--border-color-dark);
}

.project-preview-frame.expanded {
   max-height: 500px;
   border-top-width: 1px;
}

.project-preview-frame iframe {
   width: 100%;
   height: 450px;
   border: none;
   display: block;
   background: var(--background-color-dark);
}

.preview-bar {
   display: flex;
   align-items: center;
   justify-content: space-between;
   padding: 8px 16px;
   background: var(--background-color-lighter);
   border-bottom: 1px solid var(--border-color-dark);
}

.preview-bar-dots {
   display: flex;
   gap: 6px;
}

.preview-bar-dot {
   width: 10px;
   height: 10px;
   border-radius: 50%;
}

.preview-bar-dot.red { background: #ff5f56; }
.preview-bar-dot.yellow { background: #ffbd2e; }
.preview-bar-dot.green { background: #27c93f; }

.preview-bar-url {
   color: var(--text-color-dark);
   font-size: 0.8rem;
   flex-grow: 1;
   text-align: center;
}

.preview-bar-close {
   background: none;
   border: none;
   color: var(--text-color-dark);
   cursor: pointer;
   font-size: 1rem;
   padding: 4px;
   transition: color 0.3s ease;
}

.preview-bar-close:hover {
   color: #ff5f56;
}

/* ============================================
   Games Section (Portfolio Version)
   ============================================ */
.games-sub-category {
   margin-bottom: 40px;
}

.sub-category-title {
   font-size: 1.2rem;
   font-weight: 600;
   color: var(--text-color-light);
   margin-bottom: 20px;
   display: flex;
   align-items: center;
   gap: 10px;
}

.sub-category-title i {
   color: var(--primary-color);
   font-size: 1rem;
}

.sub-category-title::after {
   content: '';
   flex-grow: 1;
   height: 1px;
   background: linear-gradient(to right, var(--border-color-dark), transparent);
}

.portfolio-games-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
   gap: 24px;
}

.portfolio-game-card {
   background: var(--gradient-card-dark-light);
   border-radius: 14px;
   padding: 24px 16px 20px;
   text-align: center;
   border: 1px solid var(--border-color-dark);
   transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
   display: flex;
   flex-direction: column;
   align-items: center;
   position: relative;
   overflow: hidden;
}

.portfolio-game-card::after {
   content: '';
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   height: 3px;
   background: var(--gradient-primary-secondary);
   transform: scaleX(0);
   transition: transform 0.35s ease;
   transform-origin: left;
}

.portfolio-game-card:hover {
   transform: translateY(-6px);
   box-shadow: 0 16px 40px rgba(71, 206, 172, 0.12), 0 6px 16px rgba(0, 0, 0, 0.25);
   border-color: rgba(71, 206, 172, 0.3);
}

.portfolio-game-card:hover::after {
   transform: scaleX(1);
}

.portfolio-game-icon {
   width: 80px;
   height: 80px;
   border-radius: 16px;
   object-fit: cover;
   margin-bottom: 14px;
   box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
   transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.portfolio-game-card:hover .portfolio-game-icon {
   transform: scale(1.08) rotate(-2deg);
   box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.portfolio-game-title {
   font-size: 1rem;
   font-weight: 600;
   color: var(--text-color-light);
   margin-bottom: 6px;
}

.platform-badge {
   font-size: 0.7rem;
   font-weight: 500;
   padding: 3px 10px;
   border-radius: 20px;
   margin-bottom: 14px;
   display: inline-flex;
   align-items: center;
   gap: 4px;
}

.platform-badge.web {
   background: rgba(71, 206, 172, 0.1);
   color: var(--primary-color);
   border: 1px solid rgba(71, 206, 172, 0.2);
}

.platform-badge.desktop {
   background: rgba(100, 140, 255, 0.1);
   color: #7ea0ff;
   border: 1px solid rgba(100, 140, 255, 0.2);
}

.portfolio-game-btn {
   background: var(--gradient-primary-secondary);
   color: var(--background-color-dark);
   border: none;
   font-weight: 600;
   border-radius: 10px;
   padding: 7px 20px;
   font-size: 0.85rem;
   margin-top: auto;
   cursor: pointer;
   transition: all 0.3s ease;
   text-decoration: none;
   font-family: 'Poppins', sans-serif;
   display: inline-flex;
   align-items: center;
   gap: 6px;
}

.portfolio-game-btn:hover {
   box-shadow: 0 4px 16px rgba(71, 206, 172, 0.35);
   transform: translateY(-2px);
   color: var(--background-color-dark);
}

/* ============================================
   Achievements Section (Portfolio Version)
   ============================================ */
.portfolio-achievements-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
   gap: 24px;
   max-width: 1000px;
   margin: 0 auto;
}

.portfolio-achievement-card {
   background: var(--gradient-card-dark-light);
   border-radius: 16px;
   padding: 30px 20px;
   text-align: center;
   border: 1px solid var(--border-color-dark);
   transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
   position: relative;
   overflow: hidden;
}

.portfolio-achievement-card::before {
   content: '';
   position: absolute;
   top: 0;
   left: 50%;
   transform: translateX(-50%);
   width: 60px;
   height: 3px;
   background: var(--gradient-primary-secondary);
   border-radius: 0 0 4px 4px;
   transition: width 0.4s ease;
}

.portfolio-achievement-card:hover {
   transform: translateY(-6px);
   box-shadow: 0 16px 40px rgba(71, 206, 172, 0.12), 0 6px 16px rgba(0, 0, 0, 0.25);
   border-color: rgba(71, 206, 172, 0.3);
}

.portfolio-achievement-card:hover::before {
   width: 100%;
}

.achievement-icon-wrap {
   width: 56px;
   height: 56px;
   border-radius: 14px;
   background: rgba(71, 206, 172, 0.1);
   display: flex;
   align-items: center;
   justify-content: center;
   margin: 0 auto 16px;
   transition: all 0.35s ease;
}

.portfolio-achievement-card:hover .achievement-icon-wrap {
   background: rgba(71, 206, 172, 0.2);
   transform: scale(1.1);
}

.achievement-icon-wrap i {
   font-size: 1.4rem;
   color: var(--primary-color);
}

.portfolio-achievement-number {
   font-size: 1.8rem;
   font-weight: 800;
   color: var(--primary-color);
   margin-bottom: 6px;
   text-shadow: 0 4px 20px rgba(71, 206, 172, 0.4);
   white-space: nowrap;
   line-height: 1.2;
}

.portfolio-achievement-text {
   font-size: 0.9rem;
   color: var(--text-color-dark);
   font-weight: 500;
   line-height: 1.4;
}

/* --- Staggered Entrance Animation --- */
.stagger-item {
   opacity: 0;
   transform: translateY(20px);
   transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-item.visible {
   opacity: 1;
   transform: translateY(0);
}

/* ============================================
   Preview Modal - Desktop + Mobile Dual View
   ============================================ */
.preview-modal {
   position: fixed;
   inset: 0;
   z-index: 9999;
   background: rgba(0, 0, 0, 0.85);
   backdrop-filter: blur(12px);
   display: flex;
   align-items: center;
   justify-content: center;
   opacity: 0;
   visibility: hidden;
   transition: opacity 0.4s ease, visibility 0.4s ease;
}

.preview-modal.active {
   opacity: 1;
   visibility: visible;
}

.preview-modal-content {
   width: 95vw;
   height: 90vh;
   max-width: 1500px;
   background: var(--background-color-dark, #0d0d11);
   border-radius: 16px;
   border: 1px solid var(--border-color-dark, rgba(255,255,255,0.08));
   overflow: hidden;
   display: flex;
   flex-direction: column;
   box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6);
   transform: scale(0.92) translateY(20px);
   transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.preview-modal.active .preview-modal-content {
   transform: scale(1) translateY(0);
}

/* Header Bar */
.preview-modal-header {
   display: flex;
   align-items: center;
   gap: 16px;
   padding: 12px 20px;
   background: rgba(255, 255, 255, 0.04);
   border-bottom: 1px solid var(--border-color-dark, rgba(255,255,255,0.08));
   flex-shrink: 0;
}

.preview-modal-dots {
   display: flex;
   gap: 7px;
}

.preview-modal-dots .dot {
   width: 12px;
   height: 12px;
   border-radius: 50%;
}

.preview-modal-dots .dot.red { background: #ff5f56; }
.preview-modal-dots .dot.yellow { background: #ffbd2e; }
.preview-modal-dots .dot.green { background: #27c93f; }

.preview-modal-info {
   flex-grow: 1;
   display: flex;
   flex-direction: column;
   gap: 2px;
}

.preview-modal-name {
   font-size: 0.95rem;
   font-weight: 700;
   color: var(--text-color-light, #fff);
}

.preview-modal-url {
   font-size: 0.75rem;
   color: var(--text-color-dark, #888);
   font-family: monospace;
}

.preview-modal-close {
   width: 36px;
   height: 36px;
   border-radius: 10px;
   border: 1px solid var(--border-color-dark, rgba(255,255,255,0.1));
   background: rgba(255, 255, 255, 0.06);
   color: var(--text-color-dark, #888);
   font-size: 1rem;
   cursor: pointer;
   transition: all 0.3s ease;
   display: flex;
   align-items: center;
   justify-content: center;
}

.preview-modal-close:hover {
   background: rgba(255, 80, 80, 0.15);
   border-color: rgba(255, 80, 80, 0.3);
   color: #ff5f56;
}

/* Body - dual view */
.preview-modal-body {
   flex-grow: 1;
   display: flex;
   gap: 24px;
   padding: 24px;
   overflow: hidden;
   align-items: stretch;
}

.preview-device {
   display: flex;
   flex-direction: column;
   gap: 10px;
}

.device-label {
   font-size: 0.8rem;
   font-weight: 600;
   color: var(--primary-color, #47ceac);
   text-transform: uppercase;
   letter-spacing: 1px;
   display: flex;
   align-items: center;
   gap: 8px;
   flex-shrink: 0;
}

.device-label i {
   font-size: 0.9rem;
}

.device-frame {
   flex-grow: 1;
   border-radius: 12px;
   overflow: hidden;
   border: 1px solid var(--border-color-dark, rgba(255,255,255,0.08));
   background: #fff;
   position: relative;
}

.device-frame iframe {
   width: 100%;
   height: 100%;
   border: none;
   display: block;
}

/* Desktop - takes most space */
.preview-desktop-wrap {
   flex: 1;
   min-width: 0;
}

/* Mobile - fixed phone width with phone-like frame */
.preview-mobile-wrap {
   flex-shrink: 0;
   width: 375px;
}

.mobile-frame {
   border-radius: 24px;
   border-width: 3px;
   box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Modal responsive */
@media (max-width: 1200px) {
   .preview-mobile-wrap {
      width: 320px;
   }
}

@media (max-width: 992px) {
   .preview-modal-body {
      flex-direction: column;
      gap: 16px;
      overflow-y: auto;
   }

   .preview-desktop-wrap,
   .preview-mobile-wrap {
      width: 100%;
      flex-shrink: 0;
   }

   .preview-desktop-wrap {
      height: 50%;
   }

   .preview-mobile-wrap {
      height: 50%;
      max-width: 375px;
      margin: 0 auto;
   }
}

@media (max-width: 768px) {
   .preview-modal-content {
      width: 100vw;
      height: 100vh;
      border-radius: 0;
   }

   .preview-modal-body {
      padding: 12px;
   }

   .preview-desktop-wrap {
      display: none;
   }

   .preview-mobile-wrap {
      width: 100%;
      height: 100%;
      max-width: 100%;
   }

   .mobile-frame {
      border-radius: 12px;
   }
}


@media (max-width: 992px) {
   .web-projects-grid {
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
   }

   .portfolio-games-grid {
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 18px;
   }

   .portfolio-achievements-grid {
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 18px;
   }

   .category-header h3 {
      font-size: 1.3rem;
   }
}

@media (max-width: 768px) {
   .portfolio-section {
      padding: 60px 0 30px;
   }

   .web-projects-grid {
      grid-template-columns: 1fr;
      gap: 20px;
   }

   .project-thumbnail {
      height: 180px;
   }

   .portfolio-games-grid {
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 14px;
   }

   .portfolio-game-icon {
      width: 64px;
      height: 64px;
   }

   .portfolio-achievements-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
   }

   .portfolio-achievement-number {
      font-size: 2rem;
   }

   .project-preview-frame.expanded {
      max-height: 350px;
   }

   .project-preview-frame iframe {
      height: 300px;
   }

   .category-header {
      flex-wrap: wrap;
      gap: 10px;
   }

   .category-header .category-count {
      margin-left: 0;
   }
}

@media (max-width: 576px) {
   .portfolio-games-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
   }

   .portfolio-game-icon {
      width: 56px;
      height: 56px;
      border-radius: 12px;
   }

   .portfolio-game-title {
      font-size: 0.85rem;
   }

   .portfolio-achievements-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
   }

   .portfolio-achievement-card {
      padding: 20px 14px;
   }

   .portfolio-achievement-number {
      font-size: 1.7rem;
   }

   .portfolio-achievement-text {
      font-size: 0.8rem;
   }

   .project-info {
      padding: 18px;
   }

   .project-name {
      font-size: 1.15rem;
   }

   .project-actions {
      flex-direction: column;
      gap: 8px;
   }

   .project-btn {
      justify-content: center;
      width: 100%;
   }

   .project-preview-frame.expanded {
      max-height: 280px;
   }

   .project-preview-frame iframe {
      height: 240px;
   }
}